more consistend forward menu

update imgui again, this time back on tag v1.91.0
Squashed 'external/imgui/imgui/' changes from c2d21ab04f2..8199457a7d9
2024-07-31 18:30:02 +02:00 · 2024-07-31 18:17:17 +02:00 · 2024-07-31 18:17:17 +02:00
35 changed files with 3528 additions and 693 deletions
--- a/external/imgui/imgui/backends/imgui_impl_allegro5.h
+++ b/external/imgui/imgui/backends/imgui_impl_allegro5.h
@ -25,6 +25,7 @@
 struct ALLEGRO_DISPLAY;
 union ALLEGRO_EVENT;

+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
 IMGUI_IMPL_API bool     ImGui_ImplAllegro5_Init(ALLEGRO_DISPLAY* display);
 IMGUI_IMPL_API void     ImGui_ImplAllegro5_Shutdown();
 IMGUI_IMPL_API void     ImGui_ImplAllegro5_NewFrame();
--- a/external/imgui/imgui/backends/imgui_impl_android.h
+++ b/external/imgui/imgui/backends/imgui_impl_android.h
@ -28,6 +28,7 @@
 struct ANativeWindow;
 struct AInputEvent;

+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
 IMGUI_IMPL_API bool     ImGui_ImplAndroid_Init(ANativeWindow* window);
 IMGUI_IMPL_API int32_t  ImGui_ImplAndroid_HandleInputEvent(const AInputEvent* input_event);
 IMGUI_IMPL_API void     ImGui_ImplAndroid_Shutdown();
--- a/external/imgui/imgui/backends/imgui_impl_dx10.h
+++ b/external/imgui/imgui/backends/imgui_impl_dx10.h
@ -19,6 +19,7 @@

 struct ID3D10Device;

+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
 IMGUI_IMPL_API bool     ImGui_ImplDX10_Init(ID3D10Device* device);
 IMGUI_IMPL_API void     ImGui_ImplDX10_Shutdown();
 IMGUI_IMPL_API void     ImGui_ImplDX10_NewFrame();
--- a/external/imgui/imgui/backends/imgui_impl_dx11.h
+++ b/external/imgui/imgui/backends/imgui_impl_dx11.h
@ -20,6 +20,7 @@
 struct ID3D11Device;
 struct ID3D11DeviceContext;

+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
 IMGUI_IMPL_API bool     ImGui_ImplDX11_Init(ID3D11Device* device, ID3D11DeviceContext* device_context);
 IMGUI_IMPL_API void     ImGui_ImplDX11_Shutdown();
 IMGUI_IMPL_API void     ImGui_ImplDX11_NewFrame();
--- a/external/imgui/imgui/backends/imgui_impl_dx12.h
+++ b/external/imgui/imgui/backends/imgui_impl_dx12.h
@ -27,6 +27,8 @@ struct ID3D12GraphicsCommandList;
 struct D3D12_CPU_DESCRIPTOR_HANDLE;
 struct D3D12_GPU_DESCRIPTOR_HANDLE;

+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+
 // cmd_list is the command list that the implementation will use to render imgui draw lists.
 // Before calling the render function, caller must prepare cmd_list by resetting it and setting the appropriate
 // render target and descriptor heap that contains font_srv_cpu_desc_handle/font_srv_gpu_desc_handle.
--- a/external/imgui/imgui/backends/imgui_impl_dx9.h
+++ b/external/imgui/imgui/backends/imgui_impl_dx9.h
@ -19,6 +19,7 @@

 struct IDirect3DDevice9;

+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
 IMGUI_IMPL_API bool     ImGui_ImplDX9_Init(IDirect3DDevice9* device);
 IMGUI_IMPL_API void     ImGui_ImplDX9_Shutdown();
 IMGUI_IMPL_API void     ImGui_ImplDX9_NewFrame();
--- a/external/imgui/imgui/backends/imgui_impl_glfw.h
+++ b/external/imgui/imgui/backends/imgui_impl_glfw.h
@ -24,6 +24,7 @@
 struct GLFWwindow;
 struct GLFWmonitor;

+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
 IMGUI_IMPL_API bool     ImGui_ImplGlfw_InitForOpenGL(GLFWwindow* window, bool install_callbacks);
 IMGUI_IMPL_API bool     ImGui_ImplGlfw_InitForVulkan(GLFWwindow* window, bool install_callbacks);
 IMGUI_IMPL_API bool     ImGui_ImplGlfw_InitForOther(GLFWwindow* window, bool install_callbacks);
--- a/external/imgui/imgui/backends/imgui_impl_glut.h
+++ b/external/imgui/imgui/backends/imgui_impl_glut.h
@ -26,6 +26,7 @@
 #ifndef IMGUI_DISABLE
 #include "imgui.h"      // IMGUI_IMPL_API

+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
 IMGUI_IMPL_API bool     ImGui_ImplGLUT_Init();
 IMGUI_IMPL_API void     ImGui_ImplGLUT_InstallFuncs();
 IMGUI_IMPL_API void     ImGui_ImplGLUT_Shutdown();
--- a/external/imgui/imgui/backends/imgui_impl_metal.h
+++ b/external/imgui/imgui/backends/imgui_impl_metal.h
@ -25,6 +25,7 @@
@class MTLRenderPassDescriptor;
@protocol MTLDevice, MTLCommandBuffer, MTLRenderCommandEncoder;

+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
 IMGUI_IMPL_API bool ImGui_ImplMetal_Init(id<MTLDevice> device);
 IMGUI_IMPL_API void ImGui_ImplMetal_Shutdown();
 IMGUI_IMPL_API void ImGui_ImplMetal_NewFrame(MTLRenderPassDescriptor* renderPassDescriptor);
@ -51,6 +52,7 @@ IMGUI_IMPL_API void ImGui_ImplMetal_DestroyDeviceObjects();
 #include <Metal/Metal.hpp>
 #ifndef __OBJC__

+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
 IMGUI_IMPL_API bool ImGui_ImplMetal_Init(MTL::Device* device);
 IMGUI_IMPL_API void ImGui_ImplMetal_Shutdown();
 IMGUI_IMPL_API void ImGui_ImplMetal_NewFrame(MTL::RenderPassDescriptor* renderPassDescriptor);
--- a/external/imgui/imgui/backends/imgui_impl_opengl2.h
+++ b/external/imgui/imgui/backends/imgui_impl_opengl2.h
@ -24,6 +24,7 @@
 #include "imgui.h"      // IMGUI_IMPL_API
 #ifndef IMGUI_DISABLE

+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
 IMGUI_IMPL_API bool     ImGui_ImplOpenGL2_Init();
 IMGUI_IMPL_API void     ImGui_ImplOpenGL2_Shutdown();
 IMGUI_IMPL_API void     ImGui_ImplOpenGL2_NewFrame();
--- a/external/imgui/imgui/backends/imgui_impl_opengl3.cpp
+++ b/external/imgui/imgui/backends/imgui_impl_opengl3.cpp
@ -124,6 +124,7 @@
 // Clang/GCC warnings with -Weverything
 #if defined(__clang__)
 #pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunknown-warning-option" // warning: ignore unknown flags
 #pragma clang diagnostic ignored "-Wold-style-cast"         // warning: use of old-style cast
 #pragma clang diagnostic ignored "-Wsign-conversion"        // warning: implicit conversion changes signedness
 #pragma clang diagnostic ignored "-Wunused-macros"          // warning: macro is not used
--- a/external/imgui/imgui/backends/imgui_impl_opengl3.h
+++ b/external/imgui/imgui/backends/imgui_impl_opengl3.h
@ -29,7 +29,7 @@
 #include "imgui.h"      // IMGUI_IMPL_API
 #ifndef IMGUI_DISABLE

-// Backend API
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
 IMGUI_IMPL_API bool     ImGui_ImplOpenGL3_Init(const char* glsl_version = nullptr);
 IMGUI_IMPL_API void     ImGui_ImplOpenGL3_Shutdown();
 IMGUI_IMPL_API void     ImGui_ImplOpenGL3_NewFrame();
--- a/external/imgui/imgui/backends/imgui_impl_osx.h
+++ b/external/imgui/imgui/backends/imgui_impl_osx.h
@ -27,6 +27,7 @@
@class NSEvent;
@class NSView;

+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
 IMGUI_IMPL_API bool     ImGui_ImplOSX_Init(NSView* _Nonnull view);
 IMGUI_IMPL_API void     ImGui_ImplOSX_Shutdown();
 IMGUI_IMPL_API void     ImGui_ImplOSX_NewFrame(NSView* _Nullable view);
@ -41,6 +42,7 @@ IMGUI_IMPL_API void     ImGui_ImplOSX_NewFrame(NSView* _Nullable view);
 // #include <AppKit/AppKit.hpp>
 #ifndef __OBJC__

+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
 IMGUI_IMPL_API bool     ImGui_ImplOSX_Init(void* _Nonnull view);
 IMGUI_IMPL_API void     ImGui_ImplOSX_Shutdown();
 IMGUI_IMPL_API void     ImGui_ImplOSX_NewFrame(void* _Nullable view);
--- a/external/imgui/imgui/backends/imgui_impl_sdl2.h
+++ b/external/imgui/imgui/backends/imgui_impl_sdl2.h
@ -27,6 +27,7 @@ struct SDL_Renderer;
 struct _SDL_GameController;
 typedef union SDL_Event SDL_Event;

+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
 IMGUI_IMPL_API bool     ImGui_ImplSDL2_InitForOpenGL(SDL_Window* window, void* sdl_gl_context);
 IMGUI_IMPL_API bool     ImGui_ImplSDL2_InitForVulkan(SDL_Window* window);
 IMGUI_IMPL_API bool     ImGui_ImplSDL2_InitForD3D(SDL_Window* window);
--- a/external/imgui/imgui/backends/imgui_impl_sdl3.cpp
+++ b/external/imgui/imgui/backends/imgui_impl_sdl3.cpp
@ -21,7 +21,8 @@

 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2024-07-18: Update for SDL3 api changes: SDL_GetClipboardText() string ownership change. (#7801)
+//  2024-07-22: Update for SDL3 api changes: SDL_GetGamepads() memory ownership change. (#7807)
+//  2024-07-18: Update for SDL3 api changes: SDL_GetClipboardText() memory ownership change. (#7801)
 //  2024-07-15: Update for SDL3 api changes: SDL_GetProperty() change to SDL_GetPointerProperty(). (#7794)
 //  2024-07-02: Update for SDL3 api changes: SDLK_x renames and SDLK_KP_x removals (#7761, #7762).
 //  2024-07-01: Update for SDL3 api changes: SDL_SetTextInputRect() changed to SDL_SetTextInputArea().
@ -639,7 +640,7 @@ static void ImGui_ImplSDL3_UpdateGamepads()
    {
        ImGui_ImplSDL3_CloseGamepads();
        int sdl_gamepads_count = 0;
-        SDL_JoystickID* sdl_gamepads = SDL_GetGamepads(&sdl_gamepads_count);
+        const SDL_JoystickID* sdl_gamepads = SDL_GetGamepads(&sdl_gamepads_count);
        for (int n = 0; n < sdl_gamepads_count; n++)
            if (SDL_Gamepad* gamepad = SDL_OpenGamepad(sdl_gamepads[n]))
            {
@ -647,7 +648,6 @@ static void ImGui_ImplSDL3_UpdateGamepads()
                if (bd->GamepadMode == ImGui_ImplSDL3_GamepadMode_AutoFirst)
                    break;
            }
-        SDL_free(sdl_gamepads);
        bd->WantUpdateGamepadsList = false;
    }

--- a/external/imgui/imgui/backends/imgui_impl_sdl3.h
+++ b/external/imgui/imgui/backends/imgui_impl_sdl3.h
@ -28,6 +28,7 @@ struct SDL_Renderer;
 struct SDL_Gamepad;
 typedef union SDL_Event SDL_Event;

+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
 IMGUI_IMPL_API bool     ImGui_ImplSDL3_InitForOpenGL(SDL_Window* window, void* sdl_gl_context);
 IMGUI_IMPL_API bool     ImGui_ImplSDL3_InitForVulkan(SDL_Window* window);
 IMGUI_IMPL_API bool     ImGui_ImplSDL3_InitForD3D(SDL_Window* window);
--- a/external/imgui/imgui/backends/imgui_impl_sdlrenderer2.h
+++ b/external/imgui/imgui/backends/imgui_impl_sdlrenderer2.h
@ -25,6 +25,7 @@

 struct SDL_Renderer;

+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
 IMGUI_IMPL_API bool     ImGui_ImplSDLRenderer2_Init(SDL_Renderer* renderer);
 IMGUI_IMPL_API void     ImGui_ImplSDLRenderer2_Shutdown();
 IMGUI_IMPL_API void     ImGui_ImplSDLRenderer2_NewFrame();
--- a/external/imgui/imgui/backends/imgui_impl_sdlrenderer3.h
+++ b/external/imgui/imgui/backends/imgui_impl_sdlrenderer3.h
@ -25,6 +25,7 @@

 struct SDL_Renderer;

+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
 IMGUI_IMPL_API bool     ImGui_ImplSDLRenderer3_Init(SDL_Renderer* renderer);
 IMGUI_IMPL_API void     ImGui_ImplSDLRenderer3_Shutdown();
 IMGUI_IMPL_API void     ImGui_ImplSDLRenderer3_NewFrame();
--- a/external/imgui/imgui/backends/imgui_impl_vulkan.h
+++ b/external/imgui/imgui/backends/imgui_impl_vulkan.h
@ -98,7 +98,7 @@ struct ImGui_ImplVulkan_InitInfo
    VkDeviceSize                    MinAllocationSize;      // Minimum allocation size. Set to 1024*1024 to satisfy zealous best practices validation layer and waste a little memory.
 };

-// Called by user code
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
 IMGUI_IMPL_API bool         ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo* info);
 IMGUI_IMPL_API void         ImGui_ImplVulkan_Shutdown();
 IMGUI_IMPL_API void         ImGui_ImplVulkan_NewFrame();
--- a/external/imgui/imgui/backends/imgui_impl_wgpu.h
+++ b/external/imgui/imgui/backends/imgui_impl_wgpu.h
@ -37,6 +37,7 @@ struct ImGui_ImplWGPU_InitInfo
    }
 };

+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
 IMGUI_IMPL_API bool ImGui_ImplWGPU_Init(ImGui_ImplWGPU_InitInfo* init_info);
 IMGUI_IMPL_API void ImGui_ImplWGPU_Shutdown();
 IMGUI_IMPL_API void ImGui_ImplWGPU_NewFrame();
--- a/external/imgui/imgui/backends/imgui_impl_win32.h
+++ b/external/imgui/imgui/backends/imgui_impl_win32.h
@ -20,6 +20,7 @@
 #include "imgui.h"      // IMGUI_IMPL_API
 #ifndef IMGUI_DISABLE

+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
 IMGUI_IMPL_API bool     ImGui_ImplWin32_Init(void* hwnd);
 IMGUI_IMPL_API bool     ImGui_ImplWin32_InitForOpenGL(void* hwnd);
 IMGUI_IMPL_API void     ImGui_ImplWin32_Shutdown();
--- a/external/imgui/imgui/docs/BACKENDS.md
+++ b/external/imgui/imgui/docs/BACKENDS.md
@ -2,23 +2,10 @@ _(You may browse this at https://github.com/ocornut/imgui/blob/master/docs/BACKE

 ## Dear ImGui: Backends

-**The backends/ folder contains backends for popular platforms/graphics API, which you can use in
-your application or engine to easily integrate Dear ImGui.** Each backend is typically self-contained in a pair of files: imgui_impl_XXXX.cpp + imgui_impl_XXXX.h.
-
- The 'Platform' backends are in charge of: mouse/keyboard/gamepad inputs, cursor shape, timing, and windowing.<BR>
-  e.g. Windows ([imgui_impl_win32.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_win32.cpp)), GLFW ([imgui_impl_glfw.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_glfw.cpp)), SDL2 ([imgui_impl_sdl2.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_sdl2.cpp)), etc.
-
- The 'Renderer' backends are in charge of: creating atlas texture, and rendering imgui draw data.<BR>
-  e.g. DirectX11 ([imgui_impl_dx11.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_dx11.cpp)), OpenGL/WebGL ([imgui_impl_opengl3.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_opengl3.cpp)), Vulkan ([imgui_impl_vulkan.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_vulkan.cpp)), etc.
-
- For some high-level frameworks, a single backend usually handles both 'Platform' and 'Renderer' parts.<BR>
-  e.g. Allegro 5 ([imgui_impl_allegro5.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_allegro5.cpp)). If you end up creating a custom backend for your engine, you may want to do the same.
-
-An application usually combines one Platform backend + one Renderer backend + main Dear ImGui sources.
-For example, the [example_win32_directx11](https://github.com/ocornut/imgui/tree/master/examples/example_win32_directx11) application combines imgui_impl_win32.cpp + imgui_impl_dx11.cpp. There are 20+ examples in the [examples/](https://github.com/ocornut/imgui/blob/master/examples/) folder. See [EXAMPLES.MD](https://github.com/ocornut/imgui/blob/master/docs/EXAMPLES.md) for details.
-
-**Once Dear ImGui is setup and running, run and refer to `ImGui::ShowDemoWindow()` in imgui_demo.cpp for usage of the end-user API.**
+### Integrating backends

+💡 The **[Getting Started](https://github.com/ocornut/imgui/wiki/Getting-Started) wiki guide** has examples of how to integrate Dear ImGui into an existing application.
+<BR> The [EXAMPLES.MD](https://github.com/ocornut/imgui/blob/master/docs/EXAMPLES.md) documentation may also be worth a read.

 ### What are backends?

@ -38,7 +25,7 @@ Dear ImGui is highly portable and only requires a few things to run and render,
 - Optional: multi-viewports support.
 etc.

-This is essentially what each backend is doing + obligatory portability cruft. Using default backends ensure you can get all those features including the ones that would be harder to implement on your side (e.g. multi-viewports support).
+This is essentially what each backend is doing + obligatory portability cruft. Using standard backends ensure you can get all those features including the ones that would be harder to implement on your side (e.g. multi-viewports support).

 It is important to understand the difference between the core Dear ImGui library (files in the root folder)
 and the backends which we are describing here (backends/ folder).
@ -47,11 +34,24 @@ and the backends which we are describing here (backends/ folder).
 - You should be able to write backends for pretty much any platform and any 3D graphics API.
  e.g. you can get creative and use software rendering or render remotely on a different machine.

+### Standard backends

-### Integrating a backend
+**The [backends/](https://github.com/ocornut/imgui/blob/master/backends) folder contains backends for popular platforms/graphics API, which you can use in
+your application or engine to easily integrate Dear ImGui.** Each backend is typically self-contained in a pair of files: imgui_impl_XXXX.cpp + imgui_impl_XXXX.h.

-See "Getting Started" section of [EXAMPLES.MD](https://github.com/ocornut/imgui/blob/master/docs/EXAMPLES.md) for more details.
+- The 'Platform' backends are in charge of: mouse/keyboard/gamepad inputs, cursor shape, timing, and windowing.<BR>
+  e.g. Windows ([imgui_impl_win32.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_win32.cpp)), GLFW ([imgui_impl_glfw.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_glfw.cpp)), SDL2 ([imgui_impl_sdl2.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_sdl2.cpp)), etc.

+- The 'Renderer' backends are in charge of: creating atlas texture, and rendering imgui draw data.<BR>
+  e.g. DirectX11 ([imgui_impl_dx11.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_dx11.cpp)), OpenGL/WebGL ([imgui_impl_opengl3.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_opengl3.cpp)), Vulkan ([imgui_impl_vulkan.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_vulkan.cpp)), etc.
+
+- For some high-level frameworks, a single backend usually handles both 'Platform' and 'Renderer' parts.<BR>
+  e.g. Allegro 5 ([imgui_impl_allegro5.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_allegro5.cpp)). If you end up creating a custom backend for your engine, you may want to do the same.
+
+An application usually combines one Platform backend + one Renderer backend + main Dear ImGui sources.
+For example, the [example_win32_directx11](https://github.com/ocornut/imgui/tree/master/examples/example_win32_directx11) application combines imgui_impl_win32.cpp + imgui_impl_dx11.cpp. There are 20+ examples in the [examples/](https://github.com/ocornut/imgui/blob/master/examples/) folder. See [EXAMPLES.MD](https://github.com/ocornut/imgui/blob/master/docs/EXAMPLES.md) for details.
+
+**Once Dear ImGui is setup and running, run and refer to `ImGui::ShowDemoWindow()` in imgui_demo.cpp for usage of the end-user API.**

 ### List of backends

--- a/external/imgui/imgui/docs/CHANGELOG.txt
+++ b/external/imgui/imgui/docs/CHANGELOG.txt
@ -36,9 +36,11 @@ HOW TO UPDATE?
 - Please report any issue!

 -----------------------------------------------------------------------
- VERSION 1.91.0 WIP (In Progress)
+ VERSION 1.91.0 (Released 2024-07-30)
 -----------------------------------------------------------------------

+Decorated log and release notes: https://github.com/ocornut/imgui/releases/tag/v1.91.0
+
 Breaking changes:

 - IO, IME: renamed platform IME hook and added explicit context for consistency and future-proofness.
@ -46,6 +48,15 @@ Breaking changes:
    - new: io.PlatformSetImeDataFn(ImGuiContext* ctx, ImGuiViewport* viewport, ImGuiPlatformImeData* data);
  It is expected that for a vast majority of users this is automatically set by core
  library and/or platform backend so it won't have any effect.
+- Obsoleted GetContentRegionMax(), GetWindowContentRegionMin() and GetWindowContentRegionMax(). (#7838)
+  You should never need those functions! You can do everything in less a confusing manner by only
+  using GetCursorScreenPos() and GetContentRegionAvail(). Also always consider that if you are using
+  GetWindowPos() and GetCursorPos() you may also be making things unnecessarily complicated.
+  I repeat: You can do everything with GetCursorScreenPos() and GetContentRegionAvail()!
+   - GetWindowContentRegionMax().x - GetCursorPos().x              -->  GetContentRegionAvail().x
+   - GetWindowContentRegionMax().x + GetWindowPos().x              -->  GetCursorScreenPos().x + GetContentRegionAvail().x              // when called from left edge of window
+   - GetContentRegionMax()                                         -->  GetContentRegionAvail() + GetCursorScreenPos() - GetWindowPos() // right edge in local coordinates
+   - GetWindowContentRegionMax().x - GetWindowContentRegionMin().x -->  GetContentRegionAvail()                                         // when called from left edge of window
 - Item flag changes:
  - Obsoleted PushButtonRepeat()/PopButtonRepeat() in favor of using new PushItemFlag()/PopItemFlag()
    with ImGuiItemFlags_ButtonRepeat. Kept inline redirecting functions (will obsolete).
@ -60,48 +71,127 @@ Breaking changes:
 - Commented out obsolete ImGuiModFlags_XXX values (renamed to ImGuiMod_XXX in 1.89). (#4921, #456)
    - ImGuiModFlags_Ctrl -> ImGuiMod_Ctrl, ImGuiModFlags_Shift -> ImGuiMod_Shift etc.
 - Backends: GLFW+Emscripten: Renamed ImGui_ImplGlfw_InstallEmscriptenCanvasResizeCallback() to
-  ImGui_ImplGlfw_InstallEmscriptenCallbacks(), with additional GLFWWindow* parameter. (#7647) [@ypujante]
+  ImGui_ImplGlfw_InstallEmscriptenCallbacks(), with an additional GLFWWindow* parameter. (#7647) [@ypujante]

 Other changes:

 - Added TextLink(), TextLinkOpenURL() hyperlink widgets. (#7660)
 - IO: added io.PlatformOpenInShellFn handler to open a link/folder/file in OS shell. (#7660)
-  Default to use ShellExecute() under Windows, and system("") under Mac/Linux/etc.
-  Added IMGUI_DISABLE_DEFAULT_SHELL_FUNCTIONS to disable default implementation.
+  Added IMGUI_DISABLE_DEFAULT_SHELL_FUNCTIONS to disable default Windows/Linux/Mac implementations.
+- IO: added io.ConfigNavSwapGamepadButtons to swap Activate/Cancel (A<>B) buttons, to match the
+  typical "Nintendo/Japanese consoles" button layout when using Gamepad navigation. (#787, #5723)
 - Added PushItemFlag()/PopItemFlags(), ImGuiItemFlags to modify shared item flags:
-  - Added ImGuiItemFlags_NoTabStop to disable tabbing through items.
-  - Added ImGuiItemFlags_NoNav to disable any navigation and focus of items. (#787)
-  - Added ImGuiItemFlags_NoNavDefaultFocus to disable item being default focus. (#787)
-  - Added ImGuiItemFlags_ButtonRepeat to enable repeat on any button-like behavior.
-  - Added ImGuiItemFlags_AutoClosePopups to disable menu items/selection auto closing parent popups.
-    Disabling this was previously possible for Selectable() via a direct flag but not for MenuItem().
-    (#1379, #1468, #2200, #4936, #5216, #7302, #7573)
-  - This was mostly all previously in imgui_internal.h.
+   - Added ImGuiItemFlags_NoTabStop to disable tabbing through items.
+   - Added ImGuiItemFlags_NoNav to disable any navigation and focus of items. (#787)
+   - Added ImGuiItemFlags_NoNavDefaultFocus to disable item being default focus. (#787)
+   - Added ImGuiItemFlags_ButtonRepeat to enable repeat on any button-like behavior.
+   - Added ImGuiItemFlags_AutoClosePopups to disable menu items/selection auto closing parent popups.
+     Disabling this was previously possible for Selectable() via a direct flag but not for MenuItem().
+     (#1379, #1468, #2200, #4936, #5216, #7302, #7573)
+   - This was mostly all previously in imgui_internal.h.
+- Multi-Select: added multi-select API and demos. (#1861, #6518)
+   - This system implements standard multi-selection idioms (CTRL+mouse click, CTRL+keyboard moves,
+     SHIFT+mouse click, SHIFT+keyboard moves, etc.) with support for clipper (not submitting non-visible
+     items), box-selection with scrolling, and many other details.
+   - In the spirit of Dear ImGui design, your code owns both items and actual selection data.
+     This is designed to allow all kinds of selection storage you may use in your application
+     (e.g. set/map/hash, intrusive selection, interval trees, up to you).
+   - The supported widgets are Selectable(), Checkbox(). TreeNode() is also technically supported but...
+     using this correctly is more complicated. You need some sort of linear/random access to your tree,
+     which is suited to advanced trees setups already implementing filters and clipper.
+     We will work toward simplifying our existing demo for trees.
+   - A helper ImGuiSelectionBasicStorage is provided to facilitate getting started in a typical app
+     (likely to suit a majority of users).
+   - Documentation:
+     - Wiki page https://github.com/ocornut/imgui/wiki/Multi-Select for API overview.
+     - Demo code + headers are well commented.
+  - Added BeginMultiSelect(), EndMultiSelect(), SetNextItemSelectionUserData().
+  - Added IsItemToggledSelection() for use if you need latest selection update during current iteration.
+  - Added ImGuiMultiSelectIO and ImGuiSelectionRequest structures:
+    - BeginMultiSelect() and EndMultiSelect() return a ImGuiMultiSelectIO structure, which
+      is mostly an array of ImGuiSelectionRequest actions (clear, select all, set range, etc.)
+    - Other fields are helpful when using a clipper, or wanting to handle deletion nicely.
+  - Added ImGuiSelectionBasicStorage helper to store and maintain a selection (optional):
+    - This is similar to if you used e.g. a std::set<ID> to store a selection, with all the right
+      glue to honor ImGuiMultiSelectIO requests. Most applications can use that.
+  - Added ImGuiSelectionExternalStorage helper to maintain an externally stored selection (optional):
+    - Helpful to easily bind multi-selection to e.g. an array of checkboxes.
+  - Added ImGuiMultiSelectFlags options:
+    - ImGuiMultiSelectFlags_SingleSelect
+    - ImGuiMultiSelectFlags_NoSelectAll
+    - ImGuiMultiSelectFlags_NoRangeSelect
+    - ImGuiMultiSelectFlags_NoAutoSelect
+    - ImGuiMultiSelectFlags_NoAutoClear
+    - ImGuiMultiSelectFlags_NoAutoClearOnReselect (#7424)
+    - ImGuiMultiSelectFlags_BoxSelect1d
+    - ImGuiMultiSelectFlags_BoxSelect2d
+    - ImGuiMultiSelectFlags_BoxSelectNoScroll
+    - ImGuiMultiSelectFlags_ClearOnEscape
+    - ImGuiMultiSelectFlags_ClearOnClickVoid
+    - ImGuiMultiSelectFlags_ScopeWindow (default), ImGuiMultiSelectFlags_ScopeRect
+    - ImGuiMultiSelectFlags_SelectOnClick (default), ImGuiMultiSelectFlags_SelectOnClickRelease
+    - ImGuiMultiSelectFlags_NavWrapX
+  - Demo: Added "Examples->Assets Browser" demo.
+  - Demo: Added "Widgets->Selection State & Multi-Select" section, with:
+    - Multi-Select
+    - Multi-Select (with clipper)
+    - Multi-Select (with deletion)
+    - Multi-Select (dual list box) (#6648)
+    - Multi-Select (in a table)
+    - Multi-Select (checkboxes)
+    - Multi-Select (multiple scopes)
+    - Multi-Select (tiled assert browser)
+    - Multi-Select (trees) (#1861)
+    - Multi-Select (advanced)
+- Inputs: added SetItemKeyOwner(ImGuiKey key) in public API.
+  This is a simplified version of a more complete set of function available in imgui_internal.h.
+  One common use-case for this is to allow your widgets to disable standard inputs behaviors such
+  as Tab or Alt handling, Mouse Wheel scrolling, etc.
+  (#456, #2637, #2620, #2891, #3370, #3724, #4828, #5108, #5242, #5641)
+     // Hovering or activating the button will disable mouse wheel default behavior to scroll
+     InvisibleButton(...);
+     SetItemKeyOwner(ImGuiKey_MouseWheelY);
+- Nav: fixed clicking window decorations (e.g. resize borders) from losing focused item when
+  within a child window using ImGuiChildFlags_NavFlattened.
+- InputText: added '\' and '/' as word separator. (#7824, #7704) [@reduf]
+- TreeNode: added SetNextItemStorageID() to specify/override the identifier used for persisting
+  open/close storage. Useful if needing to often read/write from storage without manipulating
+  the ID stack. (#7553, #6990, #3823, #1131)
+- Selectable: added ImGuiSelectableFlags_Highlight flag to highlight items independently from
+  the hovered state. (#7820) [@rerilier]
 - Clipper: added SeekCursorForItem() function. When using ImGuiListClipper::Begin(INT_MAX) you can
  can use the clipper without knowing the amount of items beforehand. (#1311)
-  In this situation, call ImGuiListClipper::SeekCursorForItem(items_count) as the end of your iteration
+  In this situation, call ImGuiListClipper::SeekCursorForItem(items_count) at the end of your iteration
  loop to position the layout cursor correctly. This is done automatically if provided a count to Begin().
+- Groups, Tables: fixed EndGroup() failing to correctly capture current table occupied size. (#7543)
+- Style, TabBar: added style.TabBarOverlineSize / ImGuiStyleVar_TabBarOverlineSize to manipulate
+  thickness of the horizontal line over selected tabs. [@DctrNoob]
 - Style: close button and collapse/window-menu button hover highlight made rectangular instead of round.
- Debug Tools: Added IMGUI_DEBUG_LOG(), ImGui::DebugLog() in public API. (#5855)
-  Debug log entries add a imgui frame counter prefix + are redirected to ShowDebugLogWindow() and
-  other configurable locations. Always call IMGUI_DEBUG_LOG() for maximum stripping in caller code.
- Debug Tools: Debug Log: Added "Configure Outputs.." button. (#5855)
- Demo: Reworked "Property Editor" demo in a manner that more ressemble the tree data and
+- Misc: added GetID(int) variant for consistency. (#7111)
+- Debug Tools:
+  - Debug Log: Added IMGUI_DEBUG_LOG(), ImGui::DebugLog() in public API. (#5855)
+    Printed entries include imgui frame counter prefix + are redirected to ShowDebugLogWindow() and
+    other configurable locations. Always call IMGUI_DEBUG_LOG() for maximum stripping in caller code.
+  - Debug Log: Added "Configure Outputs.." button. (#5855)
+  - Debug Log: Fixed incorrect checkbox layout when partially clipped.
+- Demo: Reworked "Property Editor" demo in a manner that more resemble the tree data and
  struct description data that a real application would want to use.
- Backends: Win32: Fixed ImGuiMod_Super being mapped to VK_APPS instead of VK_LWIN||VK_RWIN.
-  (#7768, #4858, #2622) [@Aemony]
- Backends: SDL3: Update for API changes: SDL_GetClipboardText() string ownership change. (#7801)
- Backends: SDL3: Update for API changes: SDLK_x renames and SDLK_KP_x removals (#7761, #7762)
- Backends: SDL3: Update for API changes: SDL_GetProperty() change to SDL_GetPointerProperty(). (#7794) [@wermipls]
- Backends: SDL2,SDL3,OSX: Update for io.SetPlatformImeDataFn() -> io.PlatformSetImeDataFn() rename.
- Backends: GLFW,SDL2: Added io.PlatformOpenInShellFn handler for web/Emscripten versions. (#7660)
-  [@ypujante, @ocornut]
- Backends; GLFW+Emscripten: Added support for GLFW3 contrib port which fixes many of the things
-  not supported by the embedded GLFW: gamepad support, mouse cursor shapes, copy to clipboard,
-  workaround for Super/Meta key, different ways of resizing, multi-window (glfw/canvas) support.
-  (#7647) [@ypujante]
- Backends: GLFW+Emscripten: Fixed Emscripten warning when using mouse wheel on some setups
-  "Unable to preventDefault inside passive event listener". (#7647, #7600) [@ypujante]
+- Backends:
+  - Backends: Win32: Fixed ImGuiMod_Super being mapped to VK_APPS instead of (VK_LWIN || VK_RWIN).
+    (#7768, #4858, #2622) [@Aemony]
+  - Backends: SDL3: Update for API changes: SDL_GetGamepads() memory ownership change. (#7807)
+  - Backends: SDL3: Update for API changes: SDL_GetClipboardText() memory ownership change. (#7801)
+  - Backends: SDL3: Update for API changes: SDLK_x renames and SDLK_KP_x removals (#7761, #7762)
+  - Backends: SDL3: Update for API changes: SDL_GetProperty() change to SDL_GetPointerProperty(). (#7794) [@wermipls]
+  - Backends: SDL2,SDL3,OSX: Update for io.SetPlatformImeDataFn() -> io.PlatformSetImeDataFn() rename.
+  - Backends: GLFW,SDL2: Added io.PlatformOpenInShellFn handler for web/Emscripten versions. (#7660)
+    [@ypujante, @ocornut]
+  - Backends; GLFW+Emscripten: Added support for GLFW3 contrib port which fixes many of the things
+    not supported by the embedded GLFW: gamepad support, mouse cursor shapes, copy to clipboard,
+    workaround for Super/Meta key, different ways of resizing, multi-window (glfw/canvas) support.
+    (#7647) [@ypujante]
+  - Backends: GLFW+Emscripten: Fixed Emscripten warning when using mouse wheel on some setups
+    "Unable to preventDefault inside passive event listener". (#7647, #7600) [@ypujante]


 -----------------------------------------------------------------------
--- a/external/imgui/imgui/docs/EXAMPLES.md
+++ b/external/imgui/imgui/docs/EXAMPLES.md
@ -35,46 +35,13 @@ At shutdown:
  call ImGui::DestroyContext()
 ```

-Example (using [backends/imgui_impl_win32.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_win32.cpp) + [backends/imgui_impl_dx11.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_dx11.cpp)):
+Main resource:
+- Read **[Getting Started](https://github.com/ocornut/imgui/wiki/Getting-Started) wiki guide** for detailed examples of how to integrate Dear ImGui in an existing application.

-```cpp
-// Create a Dear ImGui context, setup some options
-ImGui::CreateContext();
-ImGuiIO& io = ImGui::GetIO();
-io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable some options
-
-// Initialize Platform + Renderer backends (here: using imgui_impl_win32.cpp + imgui_impl_dx11.cpp)
-ImGui_ImplWin32_Init(my_hwnd);
-ImGui_ImplDX11_Init(my_d3d_device, my_d3d_device_context);
-
-// Application main loop
-while (true)
-{
-    // Beginning of frame: update Renderer + Platform backend, start Dear ImGui frame
-    ImGui_ImplDX11_NewFrame();
-    ImGui_ImplWin32_NewFrame();
-    ImGui::NewFrame();
-
-    // Any application code here
-    ImGui::Text("Hello, world!");
-
-    // End of frame: render Dear ImGui
-    ImGui::Render();
-    ImGui_ImplDX11_RenderDrawData(ImGui::GetDrawData());
-
-    // Swap
-    g_pSwapChain->Present(1, 0);
-}
-
-// Shutdown
-ImGui_ImplDX11_Shutdown();
-ImGui_ImplWin32_Shutdown();
-ImGui::DestroyContext();
-```
-
-Please read 'PROGRAMMER GUIDE' in imgui.cpp for notes on how to setup Dear ImGui in your codebase.
-Please read the comments and instruction at the top of each file.
-Please read FAQ at https://www.dearimgui.com/faq
+Additional resources:
+- Read FAQ at https://www.dearimgui.com/faq
+- Read 'PROGRAMMER GUIDE' section in imgui.cpp.
+- Read the comments and instruction at the top of each file.

 If you are using any of the backends provided here, you can add the backends/imgui_impl_xxxx(.cpp,.h)
 files to your project and use as-in. Each imgui_impl_xxxx.cpp file comes with its own individual
--- a/external/imgui/imgui/docs/README.md
+++ b/external/imgui/imgui/docs/README.md
@ -13,7 +13,7 @@ Businesses: support continued development and maintenance via invoiced sponsorin
 <br>&nbsp;&nbsp;_E-mail: contact @ dearimgui dot com_
 <br>Individuals: support continued development and maintenance [here](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=WGHNC6MBFLZ2S). Also see [Funding](https://github.com/ocornut/imgui/wiki/Funding) page.

-| [The Pitch](#the-pitch) - [Usage](#usage) - [How it works](#how-it-works) - [Releases & Changelogs](#releases--changelogs) - [Demo](#demo) - [Integration](#integration) |
+| [The Pitch](#the-pitch) - [Usage](#usage) - [How it works](#how-it-works) - [Releases & Changelogs](#releases--changelogs) - [Demo](#demo) - [Getting Started & Integration](#getting-started--integration) |
 :----------------------------------------------------------: |
 | [Gallery](#gallery) - [Support, FAQ](#support-frequently-asked-questions-faq) -  [How to help](#how-to-help) - **[Funding & Sponsors](https://github.com/ocornut/imgui/wiki/Funding)** - [Credits](#credits) - [License](#license) |
 | [Wiki](https://github.com/ocornut/imgui/wiki) - [Extensions](https://github.com/ocornut/imgui/wiki/Useful-Extensions) - [Languages bindings & frameworks backends](https://github.com/ocornut/imgui/wiki/Bindings) - [Software using Dear ImGui](https://github.com/ocornut/imgui/wiki/Software-using-dear-imgui) - [User quotes](https://github.com/ocornut/imgui/wiki/Quotes) |
@ -43,7 +43,7 @@ Dear ImGui is particularly suited to integration in game engines (for tooling),

 **Backends for a variety of graphics API and rendering platforms** are provided in the [backends/](https://github.com/ocornut/imgui/tree/master/backends) folder, along with example applications in the [examples/](https://github.com/ocornut/imgui/tree/master/examples) folder. You may also create your own backend. Anywhere where you can render textured triangles, you can render Dear ImGui.

-See the [Getting Started](https://github.com/ocornut/imgui/wiki/Getting-Started) guide and [Integration](#integration) section of this document for more details.
+See the [Getting Started & Integration](#getting-started--integration) section of this document for more details.

 After Dear ImGui is set up in your application, you can use it from \_anywhere\_ in your program loop:
 ```cpp
@ -114,7 +114,7 @@ You should be able to build the examples from sources. If you don't, let us know

 The demo applications are not DPI aware so expect some blurriness on a 4K screen. For DPI awareness in your application, you can load/reload your font at a different scale and scale your style with `style.ScaleAllSizes()` (see [FAQ](https://www.dearimgui.com/faq)).

-### Integration
+### Getting Started & Integration

 See the [Getting Started](https://github.com/ocornut/imgui/wiki/Getting-Started) guide for details.

--- a/external/imgui/imgui/examples/example_android_opengl3/android/app/src/main/AndroidManifest.xml
+++ b/external/imgui/imgui/examples/example_android_opengl3/android/app/src/main/AndroidManifest.xml
@ -11,7 +11,7 @@
            android:name="imgui.example.android.MainActivity"
            android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
            android:configChanges="orientation|keyboardHidden|screenSize"
-            android:exported="false">
+            android:exported="true">
            <meta-data android:name="android.app.lib_name"
                android:value="ImGuiExample" />

--- a/external/imgui/imgui/imconfig.h
+++ b/external/imgui/imgui/imconfig.h
@ -21,10 +21,11 @@

 //---- Define attributes of all API symbols declarations, e.g. for DLL under Windows
 // Using Dear ImGui via a shared library is not recommended, because of function call overhead and because we don't guarantee backward nor forward ABI compatibility.
-// DLL users: heaps and globals are not shared across DLL boundaries! You will need to call SetCurrentContext() + SetAllocatorFunctions()
-// for each static/DLL boundary you are calling from. Read "Context and Memory Allocators" section of imgui.cpp for more details.
-//#define IMGUI_API __declspec( dllexport )
-//#define IMGUI_API __declspec( dllimport )
+// - Windows DLL users: heaps and globals are not shared across DLL boundaries! You will need to call SetCurrentContext() + SetAllocatorFunctions()
+//   for each static/DLL boundary you are calling from. Read "Context and Memory Allocators" section of imgui.cpp for more details.
+//#define IMGUI_API __declspec(dllexport)                   // MSVC Windows: DLL export
+//#define IMGUI_API __declspec(dllimport)                   // MSVC Windows: DLL import
+//#define IMGUI_API __attribute__((visibility("default")))  // GCC/Clang: override visibility when set is hidden

 //---- Don't define obsolete functions/enums/behaviors. Consider enabling from time to time after updating to clean your code of obsolete function/names.
 //#define IMGUI_DISABLE_OBSOLETE_FUNCTIONS
--- a/external/imgui/imgui/imgui.cpp
+++ b/external/imgui/imgui/imgui.cpp
@ -1,4 +1,4 @@
-// dear imgui, v1.91.0 WIP
+// dear imgui, v1.91.0
 // (main code and documentation)

 // Help:
@ -430,6 +430,16 @@ CODE
 When you are not sure about an old symbol or function name, try using the Search/Find function of your IDE to look for comments or references in all imgui files.
 You can read releases logs https://github.com/ocornut/imgui/releases for more details.

+ - 2024/07/25 (1.91.0) - obsoleted GetContentRegionMax(), GetWindowContentRegionMin() and GetWindowContentRegionMax(). (see #7838 on GitHub for more info)
+                         you should never need those functions. you can do everything with GetCursorScreenPos() and GetContentRegionAvail() in a more simple way.
+                            - instead of:  GetWindowContentRegionMax().x - GetCursorPos().x
+                            - you can use: GetContentRegionAvail().x
+                            - instead of:  GetWindowContentRegionMax().x + GetWindowPos().x
+                            - you can use: GetCursorScreenPos().x + GetContentRegionAvail().x // when called from left edge of window
+                            - instead of:  GetContentRegionMax()
+                            - you can use: GetContentRegionAvail() + GetCursorScreenPos() - GetWindowPos() // right edge in local coordinates
+                            - instead of:  GetWindowContentRegionMax().x - GetWindowContentRegionMin().x
+                            - you can use: GetContentRegionAvail() // when called from left edge of window
 - 2024/07/15 (1.91.0) - renamed ImGuiSelectableFlags_DontClosePopups to ImGuiSelectableFlags_NoAutoClosePopups. (#1379, #1468, #2200, #4936, #5216, #7302, #7573)
                         (internals: also renamed ImGuiItemFlags_SelectableDontClosePopup into ImGuiItemFlags_AutoClosePopups with inverted behaviors)
 - 2024/07/15 (1.91.0) - obsoleted PushButtonRepeat()/PopButtonRepeat() in favor of using new PushItemFlag(ImGuiItemFlags_ButtonRepeat, ...)/PopItemFlag().
@ -1269,12 +1279,13 @@ ImGuiStyle::ImGuiStyle()
    TabBorderSize               = 0.0f;             // Thickness of border around tabs.
    TabMinWidthForCloseButton   = 0.0f;             // Minimum width for close button to appear on an unselected tab when hovered. Set to 0.0f to always show when hovering, set to FLT_MAX to never show close button unless selected.
    TabBarBorderSize            = 1.0f;             // Thickness of tab-bar separator, which takes on the tab active color to denote focus.
+    TabBarOverlineSize          = 2.0f;             // Thickness of tab-bar overline, which highlights the selected tab-bar.
    TableAngledHeadersAngle     = 35.0f * (IM_PI / 180.0f); // Angle of angled headers (supported values range from -50 degrees to +50 degrees).
    TableAngledHeadersTextAlign = ImVec2(0.5f,0.0f);// Alignment of angled headers within the cell
    ColorButtonPosition         = ImGuiDir_Right;   // Side of the color button in the ColorEdit4 widget (left/right). Defaults to ImGuiDir_Right.
    ButtonTextAlign             = ImVec2(0.5f,0.5f);// Alignment of button text when button is larger than text.
    SelectableTextAlign         = ImVec2(0.0f,0.0f);// Alignment of selectable text. Defaults to (0.0f, 0.0f) (top-left aligned). It's generally important to keep this left-aligned if you want to lay multiple items on a same line.
-    SeparatorTextBorderSize     = 3.0f;             // Thickkness of border in SeparatorText()
+    SeparatorTextBorderSize     = 3.0f;             // Thickness of border in SeparatorText()
    SeparatorTextAlign          = ImVec2(0.0f,0.5f);// Alignment of text within the separator. Defaults to (0.0f, 0.5f) (left aligned, center).
    SeparatorTextPadding        = ImVec2(20.0f,3.f);// Horizontal offset of text from each edge of the separator + spacing on other axis. Generally small values. .y is recommended to be == FramePadding.y.
    DisplayWindowPadding        = ImVec2(19,19);    // Window position are clamped to be visible within the display area or monitors by at least this amount. Only applies to regular windows.
@ -1321,6 +1332,7 @@ void ImGuiStyle::ScaleAllSizes(float scale_factor)
    LogSliderDeadzone = ImTrunc(LogSliderDeadzone * scale_factor);
    TabRounding = ImTrunc(TabRounding * scale_factor);
    TabMinWidthForCloseButton = (TabMinWidthForCloseButton != FLT_MAX) ? ImTrunc(TabMinWidthForCloseButton * scale_factor) : FLT_MAX;
+    TabBarOverlineSize = ImTrunc(TabBarOverlineSize * scale_factor);
    SeparatorTextPadding = ImTrunc(SeparatorTextPadding * scale_factor);
    DisplayWindowPadding = ImTrunc(DisplayWindowPadding * scale_factor);
    DisplaySafeAreaPadding = ImTrunc(DisplaySafeAreaPadding * scale_factor);
@ -1366,6 +1378,7 @@ ImGuiIO::ImGuiIO()
 #else
    ConfigMacOSXBehaviors = false;
 #endif
+    ConfigNavSwapGamepadButtons = false;
    ConfigInputTrickleEventQueue = true;
    ConfigInputTextCursorBlink = true;
    ConfigInputTextEnterKeepActive = false;
@ -2558,6 +2571,7 @@ ImGuiStoragePair* ImLowerBound(ImGuiStoragePair* in_begin, ImGuiStoragePair* in_
    return in_p;
 }

+IM_MSVC_RUNTIME_CHECKS_OFF
 static int IMGUI_CDECL PairComparerByID(const void* lhs, const void* rhs)
 {
    // We can't just do a subtraction because qsort uses signed integers and subtracting our ID doesn't play well with that.
@ -2575,7 +2589,7 @@ void ImGuiStorage::BuildSortByKey()
 int ImGuiStorage::GetInt(ImGuiID key, int default_val) const
 {
    ImGuiStoragePair* it = ImLowerBound(const_cast<ImGuiStoragePair*>(Data.Data), const_cast<ImGuiStoragePair*>(Data.Data + Data.Size), key);
-    if (it == Data.end() || it->key != key)
+    if (it == Data.Data + Data.Size || it->key != key)
        return default_val;
    return it->val_i;
 }
@ -2588,7 +2602,7 @@ bool ImGuiStorage::GetBool(ImGuiID key, bool default_val) const
 float ImGuiStorage::GetFloat(ImGuiID key, float default_val) const
 {
    ImGuiStoragePair* it = ImLowerBound(const_cast<ImGuiStoragePair*>(Data.Data), const_cast<ImGuiStoragePair*>(Data.Data + Data.Size), key);
-    if (it == Data.end() || it->key != key)
+    if (it == Data.Data + Data.Size || it->key != key)
        return default_val;
    return it->val_f;
 }
@ -2596,7 +2610,7 @@ float ImGuiStorage::GetFloat(ImGuiID key, float default_val) const
 void* ImGuiStorage::GetVoidPtr(ImGuiID key) const
 {
    ImGuiStoragePair* it = ImLowerBound(const_cast<ImGuiStoragePair*>(Data.Data), const_cast<ImGuiStoragePair*>(Data.Data + Data.Size), key);
-    if (it == Data.end() || it->key != key)
+    if (it == Data.Data + Data.Size || it->key != key)
        return NULL;
    return it->val_p;
 }
@ -2605,7 +2619,7 @@ void* ImGuiStorage::GetVoidPtr(ImGuiID key) const
 int* ImGuiStorage::GetIntRef(ImGuiID key, int default_val)
 {
    ImGuiStoragePair* it = ImLowerBound(Data.Data, Data.Data + Data.Size, key);
-    if (it == Data.end() || it->key != key)
+    if (it == Data.Data + Data.Size || it->key != key)
        it = Data.insert(it, ImGuiStoragePair(key, default_val));
    return &it->val_i;
 }
@ -2618,7 +2632,7 @@ bool* ImGuiStorage::GetBoolRef(ImGuiID key, bool default_val)
 float* ImGuiStorage::GetFloatRef(ImGuiID key, float default_val)
 {
    ImGuiStoragePair* it = ImLowerBound(Data.Data, Data.Data + Data.Size, key);
-    if (it == Data.end() || it->key != key)
+    if (it == Data.Data + Data.Size || it->key != key)
        it = Data.insert(it, ImGuiStoragePair(key, default_val));
    return &it->val_f;
 }
@ -2626,7 +2640,7 @@ float* ImGuiStorage::GetFloatRef(ImGuiID key, float default_val)
 void** ImGuiStorage::GetVoidPtrRef(ImGuiID key, void* default_val)
 {
    ImGuiStoragePair* it = ImLowerBound(Data.Data, Data.Data + Data.Size, key);
-    if (it == Data.end() || it->key != key)
+    if (it == Data.Data + Data.Size || it->key != key)
        it = Data.insert(it, ImGuiStoragePair(key, default_val));
    return &it->val_p;
 }
@ -2635,7 +2649,7 @@ void** ImGuiStorage::GetVoidPtrRef(ImGuiID key, void* default_val)
 void ImGuiStorage::SetInt(ImGuiID key, int val)
 {
    ImGuiStoragePair* it = ImLowerBound(Data.Data, Data.Data + Data.Size, key);
-    if (it == Data.end() || it->key != key)
+    if (it == Data.Data + Data.Size || it->key != key)
        Data.insert(it, ImGuiStoragePair(key, val));
    else
        it->val_i = val;
@ -2649,7 +2663,7 @@ void ImGuiStorage::SetBool(ImGuiID key, bool val)
 void ImGuiStorage::SetFloat(ImGuiID key, float val)
 {
    ImGuiStoragePair* it = ImLowerBound(Data.Data, Data.Data + Data.Size, key);
-    if (it == Data.end() || it->key != key)
+    if (it == Data.Data + Data.Size || it->key != key)
        Data.insert(it, ImGuiStoragePair(key, val));
    else
        it->val_f = val;
@ -2658,7 +2672,7 @@ void ImGuiStorage::SetFloat(ImGuiID key, float val)
 void ImGuiStorage::SetVoidPtr(ImGuiID key, void* val)
 {
    ImGuiStoragePair* it = ImLowerBound(Data.Data, Data.Data + Data.Size, key);
-    if (it == Data.end() || it->key != key)
+    if (it == Data.Data + Data.Size || it->key != key)
        Data.insert(it, ImGuiStoragePair(key, val));
    else
        it->val_p = val;
@ -2669,6 +2683,7 @@ void ImGuiStorage::SetAllInt(int v)
    for (int i = 0; i < Data.Size; i++)
        Data[i].val_i = v;
 }
+IM_MSVC_RUNTIME_CHECKS_RESTORE

 //-----------------------------------------------------------------------------
 // [SECTION] ImGuiTextFilter
@ -2736,15 +2751,15 @@ void ImGuiTextFilter::Build()

 bool ImGuiTextFilter::PassFilter(const char* text, const char* text_end) const
 {
-    if (Filters.empty())
+    if (Filters.Size == 0)
        return true;

    if (text == NULL)
-        text = "";
+        text = text_end = "";

    for (const ImGuiTextRange& f : Filters)
    {
-        if (f.empty())
+        if (f.b == f.e)
            continue;
        if (f.b[0] == '-')
        {
@ -3047,7 +3062,8 @@ static bool ImGuiListClipper_StepInternal(ImGuiListClipper* clipper)
        bool affected_by_floating_point_precision = ImIsFloatAboveGuaranteedIntegerPrecision(clipper->StartPosY) || ImIsFloatAboveGuaranteedIntegerPrecision(window->DC.CursorPos.y);
        if (affected_by_floating_point_precision)
            clipper->ItemsHeight = window->DC.PrevLineSize.y + g.Style.ItemSpacing.y; // FIXME: Technically wouldn't allow multi-line entries.
-
+        if (clipper->ItemsHeight == 0.0f && clipper->ItemsCount == INT_MAX) // Accept that no item have been submitted if in indeterminate mode.
+            return false;
        IM_ASSERT(clipper->ItemsHeight > 0.0f && "Unable to calculate item height! First item hasn't moved the cursor vertically!");
        calc_clipping = true;   // If item height had to be calculated, calculate clipping afterwards.
    }
@ -3079,9 +3095,27 @@ static bool ImGuiListClipper_StepInternal(ImGuiListClipper* clipper)
                data->Ranges.push_back(ImGuiListClipperRange::FromPositions(nav_rect_abs.Min.y, nav_rect_abs.Max.y, 0, 0));

            // Add visible range
+            float min_y = window->ClipRect.Min.y;
+            float max_y = window->ClipRect.Max.y;
+
+            // Add box selection range
+            ImGuiBoxSelectState* bs = &g.BoxSelectState;
+            if (bs->IsActive && bs->Window == window)
+            {
+                // FIXME: Selectable() use of half-ItemSpacing isn't consistent in matter of layout, as ItemAdd(bb) stray above ItemSize()'s CursorPos.
+                // RangeSelect's BoxSelect relies on comparing overlap of previous and current rectangle and is sensitive to that.
+                // As a workaround we currently half ItemSpacing worth on each side.
+                min_y -= g.Style.ItemSpacing.y;
+                max_y += g.Style.ItemSpacing.y;
+
+                // Box-select on 2D area requires different clipping.
+                if (bs->UnclipMode)
+                    data->Ranges.push_back(ImGuiListClipperRange::FromPositions(bs->UnclipRect.Min.y, bs->UnclipRect.Max.y, 0, 0));
+            }
+
            const int off_min = (is_nav_request && g.NavMoveClipDir == ImGuiDir_Up) ? -1 : 0;
            const int off_max = (is_nav_request && g.NavMoveClipDir == ImGuiDir_Down) ? 1 : 0;
-            data->Ranges.push_back(ImGuiListClipperRange::FromPositions(window->ClipRect.Min.y, window->ClipRect.Max.y, off_min, off_max));
+            data->Ranges.push_back(ImGuiListClipperRange::FromPositions(min_y, max_y, off_min, off_max));
        }

        // Convert position ranges to item index ranges
@ -3254,6 +3288,7 @@ static const ImGuiDataVarInfo GStyleVarInfo[] =
    { ImGuiDataType_Float, 1, (ImU32)offsetof(ImGuiStyle, TabRounding) },               // ImGuiStyleVar_TabRounding
    { ImGuiDataType_Float, 1, (ImU32)offsetof(ImGuiStyle, TabBorderSize) },             // ImGuiStyleVar_TabBorderSize
    { ImGuiDataType_Float, 1, (ImU32)offsetof(ImGuiStyle, TabBarBorderSize) },          // ImGuiStyleVar_TabBarBorderSize
+    { ImGuiDataType_Float, 1, (ImU32)offsetof(ImGuiStyle, TabBarOverlineSize) },        // ImGuiStyleVar_TabBarOverlineSize
    { ImGuiDataType_Float, 1, (ImU32)offsetof(ImGuiStyle, TableAngledHeadersAngle)},    // ImGuiStyleVar_TableAngledHeadersAngle
    { ImGuiDataType_Float, 2, (ImU32)offsetof(ImGuiStyle, TableAngledHeadersTextAlign)},// ImGuiStyleVar_TableAngledHeadersTextAlign
    { ImGuiDataType_Float, 2, (ImU32)offsetof(ImGuiStyle, ButtonTextAlign) },           // ImGuiStyleVar_ButtonTextAlign
@ -3818,6 +3853,9 @@ void ImGui::Shutdown()
    g.TablesTempData.clear_destruct();
    g.DrawChannelsTempMergeBuffer.clear();

+    g.MultiSelectStorage.Clear();
+    g.MultiSelectTempData.clear_destruct();
+
    g.ClipboardHandlerData.clear();
    g.MenusIdSubmittedThisFrame.clear();
    g.InputTextState.ClearFreeMemory();
@ -3928,6 +3966,8 @@ void ImGui::GcCompactTransientMiscBuffers()
    ImGuiContext& g = *GImGui;
    g.ItemFlagsStack.clear();
    g.GroupStack.clear();
+    g.MultiSelectTempDataStacked = 0;
+    g.MultiSelectTempData.clear_destruct();
    TableGcCompactSettings();
 }

@ -4012,9 +4052,6 @@ void ImGui::SetActiveID(ImGuiID id, ImGuiWindow* window)
    // (Please note that this is WIP and not all keys/inputs are thoroughly declared by all widgets yet)
    g.ActiveIdUsingNavDirMask = 0x00;
    g.ActiveIdUsingAllKeyboardKeys = false;
-#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
-    g.ActiveIdUsingNavInputMask = 0x00;
-#endif
 }

 void ImGui::ClearActiveID()
@ -4052,7 +4089,7 @@ void ImGui::MarkItemEdited(ImGuiID id)

    // We accept a MarkItemEdited() on drag and drop targets (see https://github.com/ocornut/imgui/issues/1875#issuecomment-978243343)
    // We accept 'ActiveIdPreviousFrame == id' for InputText() returning an edit after it has been taken ActiveId away (#4714)
-    IM_ASSERT(g.DragDropActive || g.ActiveId == id || g.ActiveId == 0 || g.ActiveIdPreviousFrame == id);
+    IM_ASSERT(g.DragDropActive || g.ActiveId == id || g.ActiveId == 0 || g.ActiveIdPreviousFrame == id || (g.CurrentMultiSelect != NULL && g.BoxSelectState.IsActive));

    //IM_ASSERT(g.CurrentWindow->DC.LastItemId == id);
    g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_Edited;
@ -4778,25 +4815,8 @@ void ImGui::NewFrame()
    {
        g.ActiveIdUsingNavDirMask = 0x00;
        g.ActiveIdUsingAllKeyboardKeys = false;
-#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
-        g.ActiveIdUsingNavInputMask = 0x00;
-#endif
    }

-#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
-    if (g.ActiveId == 0)
-        g.ActiveIdUsingNavInputMask = 0;
-    else if (g.ActiveIdUsingNavInputMask != 0)
-    {
-        // If your custom widget code used:                 { g.ActiveIdUsingNavInputMask |= (1 << ImGuiNavInput_Cancel); }
-        // Since IMGUI_VERSION_NUM >= 18804 it should be:   { SetKeyOwner(ImGuiKey_Escape, g.ActiveId); SetKeyOwner(ImGuiKey_NavGamepadCancel, g.ActiveId); }
-        if (g.ActiveIdUsingNavInputMask & (1 << ImGuiNavInput_Cancel))
-            SetKeyOwner(ImGuiKey_Escape, g.ActiveId);
-        if (g.ActiveIdUsingNavInputMask & ~(1 << ImGuiNavInput_Cancel))
-            IM_ASSERT(0); // Other values unsupported
-    }
-#endif
-
    // Record when we have been stationary as this state is preserved while over same item.
    // FIXME: The way this is expressed means user cannot alter HoverStationaryDelay during the frame to use varying values.
    // To allow this we should store HoverItemMaxStationaryTime+ID and perform the >= check in IsItemHovered() function.
@ -5446,9 +5466,15 @@ bool ImGui::IsItemToggledOpen()
    return (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_ToggledOpen) ? true : false;
 }

+// Call after a Selectable() or TreeNode() involved in multi-selection.
+// Useful if you need the per-item information before reaching EndMultiSelect(), e.g. for rendering purpose.
+// This is only meant to be called inside a BeginMultiSelect()/EndMultiSelect() block.
+// (Outside of multi-select, it would be misleading/ambiguous to report this signal, as widgets
+// return e.g. a pressed event and user code is in charge of altering selection in ways we cannot predict.)
 bool ImGui::IsItemToggledSelection()
 {
    ImGuiContext& g = *GImGui;
+    IM_ASSERT(g.CurrentMultiSelect != NULL); // Can only be used inside a BeginMultiSelect()/EndMultiSelect()
    return (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_ToggledSelection) ? true : false;
 }

@ -5508,7 +5534,8 @@ void ImGui::SetItemAllowOverlap()
 }
 #endif

-// FIXME: It might be undesirable that this will likely disable KeyOwner-aware shortcuts systems. Consider a more fine-tuned version for the two users of this function.
+// This is a shortcut for not taking ownership of 100+ keys, frequently used by drag operations.
+// FIXME: It might be undesirable that this will likely disable KeyOwner-aware shortcuts systems. Consider a more fine-tuned version if needed?
 void ImGui::SetActiveIdUsingAllKeyboardKeys()
 {
    ImGuiContext& g = *GImGui;
@ -8217,6 +8244,7 @@ bool ImGui::IsRectVisible(const ImVec2& rect_min, const ImVec2& rect_max)

 // This is one of the very rare legacy case where we use ImGuiWindow methods,
 // it should ideally be flattened at some point but it's been used a lots by widgets.
+IM_MSVC_RUNTIME_CHECKS_OFF
 ImGuiID ImGuiWindow::GetID(const char* str, const char* str_end)
 {
    ImGuiID seed = IDStack.back();
@ -8356,6 +8384,13 @@ ImGuiID ImGui::GetID(const void* ptr_id)
    return window->GetID(ptr_id);
 }

+ImGuiID ImGui::GetID(int int_id)
+{
+    ImGuiWindow* window = GImGui->CurrentWindow;
+    return window->GetID(int_id);
+}
+IM_MSVC_RUNTIME_CHECKS_RESTORE
+
 //-----------------------------------------------------------------------------
 // [SECTION] INPUTS
 //-----------------------------------------------------------------------------
@ -9773,6 +9808,11 @@ void ImGui::SetItemKeyOwner(ImGuiKey key, ImGuiInputFlags flags)
    }
 }

+void ImGui::SetItemKeyOwner(ImGuiKey key)
+{
+    SetItemKeyOwner(key, ImGuiInputFlags_None);
+}
+
 // This is the only public API until we expose owner_id versions of the API as replacements.
 bool ImGui::IsKeyChordPressed(ImGuiKeyChord key_chord)
 {
@ -10060,6 +10100,11 @@ void    ImGui::ErrorCheckEndWindowRecover(ImGuiErrorLogCallback log_callback, vo
        if (log_callback) log_callback(user_data, "Recovered from missing EndTabBar() in '%s'", window->Name);
        EndTabBar();
    }
+    while (g.CurrentMultiSelect != NULL && g.CurrentMultiSelect->Storage->Window == window)
+    {
+        if (log_callback) log_callback(user_data, "Recovered from missing EndMultiSelect() in '%s'", window->Name);
+        EndMultiSelect();
+    }
    while (window->DC.TreeDepth > 0)
    {
        if (log_callback) log_callback(user_data, "Recovered from missing TreePop() in '%s'", window->Name);
@ -10283,9 +10328,7 @@ IM_MSVC_RUNTIME_CHECKS_RESTORE
 // - GetFrameHeight()
 // - GetFrameHeightWithSpacing()
 // - GetContentRegionMax()
-// - GetContentRegionMaxAbs() [Internal]
 // - GetContentRegionAvail(),
-// - GetWindowContentRegionMin(), GetWindowContentRegionMax()
 // - BeginGroup()
 // - EndGroup()
 // Also see in imgui_widgets: tab bars, and in imgui_tables: tables, columns.
@ -10501,8 +10544,8 @@ float ImGui::CalcItemWidth()
        w = window->DC.ItemWidth;
    if (w < 0.0f)
    {
-        float region_max_x = GetContentRegionMaxAbs().x;
-        w = ImMax(1.0f, region_max_x - window->DC.CursorPos.x + w);
+        float region_avail_x = GetContentRegionAvail().x;
+        w = ImMax(1.0f, region_avail_x + w);
    }
    w = IM_TRUNC(w);
    return w;
@ -10514,22 +10557,19 @@ float ImGui::CalcItemWidth()
 // The 4.0f here may be changed to match CalcItemWidth() and/or BeginChild() (right now we have a mismatch which is harmless but undesirable)
 ImVec2 ImGui::CalcItemSize(ImVec2 size, float default_w, float default_h)
 {
-    ImGuiContext& g = *GImGui;
-    ImGuiWindow* window = g.CurrentWindow;
-
-    ImVec2 region_max;
+    ImVec2 avail;
    if (size.x < 0.0f || size.y < 0.0f)
-        region_max = GetContentRegionMaxAbs();
+        avail = GetContentRegionAvail();

    if (size.x == 0.0f)
        size.x = default_w;
    else if (size.x < 0.0f)
-        size.x = ImMax(4.0f, region_max.x - window->DC.CursorPos.x + size.x);
+        size.x = ImMax(4.0f, avail.x + size.x); // <-- size.x is negative here so we are subtracting

    if (size.y == 0.0f)
        size.y = default_h;
    else if (size.y < 0.0f)
-        size.y = ImMax(4.0f, region_max.y - window->DC.CursorPos.y + size.y);
+        size.y = ImMax(4.0f, avail.y + size.y); // <-- size.y is negative here so we are subtracting

    return size;
 }
@ -10558,33 +10598,23 @@ float ImGui::GetFrameHeightWithSpacing()
    return g.FontSize + g.Style.FramePadding.y * 2.0f + g.Style.ItemSpacing.y;
 }

-// FIXME: All the Contents Region function are messy or misleading. WE WILL AIM TO OBSOLETE ALL OF THEM WITH A NEW "WORK RECT" API. Thanks for your patience!
-
-// FIXME: This is in window space (not screen space!).
-ImVec2 ImGui::GetContentRegionMax()
-{
-    ImGuiContext& g = *GImGui;
-    ImGuiWindow* window = g.CurrentWindow;
-    ImVec2 mx = (window->DC.CurrentColumns || g.CurrentTable) ? window->WorkRect.Max : window->ContentRegionRect.Max;
-    return mx - window->Pos;
-}
-
-// [Internal] Absolute coordinate. Saner. This is not exposed until we finishing refactoring work rect features.
-ImVec2 ImGui::GetContentRegionMaxAbs()
-{
-    ImGuiContext& g = *GImGui;
-    ImGuiWindow* window = g.CurrentWindow;
-    ImVec2 mx = (window->DC.CurrentColumns || g.CurrentTable) ? window->WorkRect.Max : window->ContentRegionRect.Max;
-    return mx;
-}
-
 ImVec2 ImGui::GetContentRegionAvail()
 {
-    ImGuiWindow* window = GImGui->CurrentWindow;
-    return GetContentRegionMaxAbs() - window->DC.CursorPos;
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    ImVec2 mx = (window->DC.CurrentColumns || g.CurrentTable) ? window->WorkRect.Max : window->ContentRegionRect.Max;
+    return mx - window->DC.CursorPos;
+}
+
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+
+// You should never need those functions. Always use GetCursorScreenPos() and GetContentRegionAvail()!
+// They are bizarre local-coordinates which don't play well with scrolling.
+ImVec2 ImGui::GetContentRegionMax()
+{
+    return GetContentRegionAvail() + GetCursorScreenPos() - GetWindowPos();
 }

-// In window space (not screen space!)
 ImVec2 ImGui::GetWindowContentRegionMin()
 {
    ImGuiWindow* window = GImGui->CurrentWindow;
@ -10596,6 +10626,7 @@ ImVec2 ImGui::GetWindowContentRegionMax()
    ImGuiWindow* window = GImGui->CurrentWindow;
    return window->ContentRegionRect.Max - window->Pos;
 }
+#endif

 // Lock horizontal starting position + capture group bounding box into one "item" (so you can use IsItemHovered() or layout primitives such as SameLine() on whole group, etc.)
 // Groups are currently a mishmash of functionalities which should perhaps be clarified and separated.
@ -10641,11 +10672,11 @@ void ImGui::EndGroup()
    if (window->DC.IsSetPos)
        ErrorCheckUsingSetCursorPosToExtendParentBoundaries();

-    ImRect group_bb(group_data.BackupCursorPos, ImMax(window->DC.CursorMaxPos, group_data.BackupCursorPos));
-
+    // Include LastItemData.Rect.Max as a workaround for e.g. EndTable() undershooting with CursorMaxPos report. (#7543)
+    ImRect group_bb(group_data.BackupCursorPos, ImMax(ImMax(window->DC.CursorMaxPos, g.LastItemData.Rect.Max), group_data.BackupCursorPos));
    window->DC.CursorPos = group_data.BackupCursorPos;
    window->DC.CursorPosPrevLine = group_data.BackupCursorPosPrevLine;
-    window->DC.CursorMaxPos = ImMax(group_data.BackupCursorMaxPos, window->DC.CursorMaxPos);
+    window->DC.CursorMaxPos = ImMax(group_data.BackupCursorMaxPos, group_bb.Max);
    window->DC.Indent = group_data.BackupIndent;
    window->DC.GroupOffset = group_data.BackupGroupOffset;
    window->DC.CurrLineSize = group_data.BackupCurrLineSize;
@ -10660,7 +10691,7 @@ void ImGui::EndGroup()
        return;
    }

-    window->DC.CurrLineTextBaseOffset = ImMax(window->DC.PrevLineTextBaseOffset, group_data.BackupCurrLineTextBaseOffset);      // FIXME: Incorrect, we should grab the base offset from the *first line* of the group but it is hard to obtain now.
+    window->DC.CurrLineTextBaseOffset = ImMax(window->DC.PrevLineTextBaseOffset, group_data.BackupCurrLineTextBaseOffset); // FIXME: Incorrect, we should grab the base offset from the *first line* of the group but it is hard to obtain now.
    ItemSize(group_bb.GetSize());
    ItemAdd(group_bb, 0, NULL, ImGuiItemFlags_NoTabStop);

@ -12003,6 +12034,7 @@ void ImGui::NavMoveRequestSubmit(ImGuiDir move_dir, ImGuiDir clip_dir, ImGuiNavM
 {
    ImGuiContext& g = *GImGui;
    IM_ASSERT(g.NavWindow != NULL);
+    //IMGUI_DEBUG_LOG_NAV("[nav] NavMoveRequestSubmit: dir %c, window \"%s\"\n", "-WENS"[move_dir + 1], g.NavWindow->Name);

    if (move_flags & ImGuiNavMoveFlags_IsTabbing)
        move_flags |= ImGuiNavMoveFlags_AllowCurrentNavId;
@ -12251,6 +12283,7 @@ static void ImGui::NavUpdate()

    // Process navigation init request (select first/default focus)
    g.NavJustMovedToId = 0;
+    g.NavJustMovedToFocusScopeId = g.NavJustMovedFromFocusScopeId = 0;
    if (g.NavInitResult.ID != 0)
        NavInitRequestApplyResult();
    g.NavInitRequest = false;
@ -12403,6 +12436,7 @@ void ImGui::NavInitRequestApplyResult()
    ImGuiNavItemData* result = &g.NavInitResult;
    if (g.NavId != result->ID)
    {
+        g.NavJustMovedFromFocusScopeId = g.NavFocusScopeId;
        g.NavJustMovedToId = result->ID;
        g.NavJustMovedToFocusScopeId = result->FocusScopeId;
        g.NavJustMovedToKeyMods = 0;
@ -12661,6 +12695,7 @@ void ImGui::NavMoveRequestApplyResult()
    // PageUp/PageDown however sets always set NavJustMovedTo (vs Home/End which doesn't) mimicking Windows behavior.
    if ((g.NavId != result->ID || (g.NavMoveFlags & ImGuiNavMoveFlags_IsPageMove)) && (g.NavMoveFlags & ImGuiNavMoveFlags_NoSelect) == 0)
    {
+        g.NavJustMovedFromFocusScopeId = g.NavFocusScopeId;
        g.NavJustMovedToId = result->ID;
        g.NavJustMovedToFocusScopeId = result->FocusScopeId;
        g.NavJustMovedToKeyMods = g.NavMoveKeyMods;
@ -13419,7 +13454,7 @@ bool ImGui::BeginDragDropTargetCustom(const ImRect& bb, ImGuiID id)

    IM_ASSERT(g.DragDropWithinTarget == false && g.DragDropWithinSource == false); // Can't nest BeginDragDropSource() and BeginDragDropTarget()
    g.DragDropTargetRect = bb;
-    g.DragDropTargetClipRect = window->ClipRect; // May want to be overriden by user depending on use case?
+    g.DragDropTargetClipRect = window->ClipRect; // May want to be overridden by user depending on use case?
    g.DragDropTargetId = id;
    g.DragDropWithinTarget = true;
    return true;
@ -14957,6 +14992,17 @@ void ImGui::ShowMetricsWindow(bool* p_open)
        TreePop();
    }

+    // Details for MultiSelect
+    if (TreeNode("MultiSelect", "MultiSelect (%d)", g.MultiSelectStorage.GetAliveCount()))
+    {
+        ImGuiBoxSelectState* bs = &g.BoxSelectState;
+        BulletText("BoxSelect ID=0x%08X, Starting = %d, Active %d", bs->ID, bs->IsStarting, bs->IsActive);
+        for (int n = 0; n < g.MultiSelectStorage.GetMapSize(); n++)
+            if (ImGuiMultiSelectState* state = g.MultiSelectStorage.TryGetMapData(n))
+                DebugNodeMultiSelectState(state);
+        TreePop();
+    }
+
    // Details for Docking
 #ifdef IMGUI_HAS_DOCK
    if (TreeNode("Docking"))
@ -15025,7 +15071,12 @@ void ImGui::ShowMetricsWindow(bool* p_open)
        for (int n = buf_size - 1; n >= 0; n--)
        {
            ImGuiDebugAllocEntry* entry = &info->LastEntriesBuf[(info->LastEntriesIdx - n + buf_size) % buf_size];
-            BulletText("Frame %06d: %+3d ( %2d malloc, %2d free )%s", entry->FrameCount, entry->AllocCount - entry->FreeCount, entry->AllocCount, entry->FreeCount, (n == 0) ? " (most recent)" : "");
+            BulletText("Frame %06d: %+3d ( %2d alloc, %2d free )", entry->FrameCount, entry->AllocCount - entry->FreeCount, entry->AllocCount, entry->FreeCount);
+            if (n == 0)
+            {
+                SameLine();
+                Text("<- %d frames ago", g.FrameCount - entry->FrameCount);
+            }
        }
        TreePop();
    }
@ -15651,6 +15702,12 @@ void ImGui::DebugNodeWindow(ImGuiWindow* window, const char* label)
        (flags & ImGuiWindowFlags_ChildWindow)  ? "Child " : "",      (flags & ImGuiWindowFlags_Tooltip)     ? "Tooltip "   : "",  (flags & ImGuiWindowFlags_Popup) ? "Popup " : "",
        (flags & ImGuiWindowFlags_Modal)        ? "Modal " : "",      (flags & ImGuiWindowFlags_ChildMenu)   ? "ChildMenu " : "",  (flags & ImGuiWindowFlags_NoSavedSettings) ? "NoSavedSettings " : "",
        (flags & ImGuiWindowFlags_NoMouseInputs)? "NoMouseInputs":"", (flags & ImGuiWindowFlags_NoNavInputs) ? "NoNavInputs" : "", (flags & ImGuiWindowFlags_AlwaysAutoResize) ? "AlwaysAutoResize" : "");
+    if (flags & ImGuiWindowFlags_ChildWindow)
+        BulletText("ChildFlags: 0x%08X (%s%s%s%s..)", window->ChildFlags,
+            (window->ChildFlags & ImGuiChildFlags_Border) ? "Border " : "",
+            (window->ChildFlags & ImGuiChildFlags_ResizeX) ? "ResizeX " : "",
+            (window->ChildFlags & ImGuiChildFlags_ResizeY) ? "ResizeY " : "",
+            (window->ChildFlags & ImGuiChildFlags_NavFlattened) ? "NavFlattened " : "");
    BulletText("Scroll: (%.2f/%.2f,%.2f/%.2f) Scrollbar:%s%s", window->Scroll.x, window->ScrollMax.x, window->Scroll.y, window->ScrollMax.y, window->ScrollbarX ? "X" : "", window->ScrollbarY ? "Y" : "");
    BulletText("Active: %d/%d, WriteAccessed: %d, BeginOrderWithinContext: %d", window->Active, window->WasActive, window->WriteAccessed, (window->Active || window->WasActive) ? window->BeginOrderWithinContext : -1);
    BulletText("Appearing: %d, Hidden: %d (CanSkip %d Cannot %d), SkipItems: %d", window->Appearing, window->Hidden, window->HiddenFramesCanSkipItems, window->HiddenFramesCannotSkipItems, window->SkipItems);
@ -15761,7 +15818,7 @@ static void SameLineOrWrap(const ImVec2& size)
    ImGuiContext& g = *GImGui;
    ImGuiWindow* window = g.CurrentWindow;
    ImVec2 pos(window->DC.CursorPosPrevLine.x + g.Style.ItemSpacing.x, window->DC.CursorPosPrevLine.y);
-    if (window->ClipRect.Contains(ImRect(pos, pos + size)))
+    if (window->WorkRect.Contains(ImRect(pos, pos + size)))
        ImGui::SameLine();
 }

@ -15799,7 +15856,7 @@ void ImGui::ShowDebugLogWindow(bool* p_open)
    ShowDebugLogFlag("IO", ImGuiDebugLogFlags_EventIO);
    ShowDebugLogFlag("Nav", ImGuiDebugLogFlags_EventNav);
    ShowDebugLogFlag("Popup", ImGuiDebugLogFlags_EventPopup);
-    //ShowDebugLogFlag("Selection", ImGuiDebugLogFlags_EventSelection);
+    ShowDebugLogFlag("Selection", ImGuiDebugLogFlags_EventSelection);
    ShowDebugLogFlag("InputRouting", ImGuiDebugLogFlags_EventInputRouting);

    if (SmallButton("Clear"))
@ -15855,7 +15912,7 @@ void ImGui::DebugTextUnformattedWithLocateItem(const char* line_begin, const cha
    for (const char* p = line_begin; p <= line_end - 10; p++)
    {
        ImGuiID id = 0;
-        if (p[0] != '0' || (p[1] != 'x' && p[1] != 'X') || sscanf(p + 2, "%X", &id) != 1)
+        if (p[0] != '0' || (p[1] != 'x' && p[1] != 'X') || sscanf(p + 2, "%X", &id) != 1 || ImCharIsXdigitA(p[10]))
            continue;
        ImVec2 p0 = CalcTextSize(line_begin, p);
        ImVec2 p1 = CalcTextSize(p, p + 10);
--- a/external/imgui/imgui/imgui.h
+++ b/external/imgui/imgui/imgui.h
@ -1,4 +1,4 @@
-// dear imgui, v1.91.0 WIP
+// dear imgui, v1.91.0
 // (headers)

 // Help:
@ -27,8 +27,8 @@

 // Library Version
 // (Integer encoded as XYYZZ for use in #if preprocessor conditionals, e.g. '#if IMGUI_VERSION_NUM >= 12345')
-#define IMGUI_VERSION       "1.91.0 WIP"
-#define IMGUI_VERSION_NUM   19095
+#define IMGUI_VERSION       "1.91.0"
+#define IMGUI_VERSION_NUM   19100
 #define IMGUI_HAS_TABLE

 /*
@ -44,6 +44,7 @@ Index of this file:
 // [SECTION] ImGuiIO
 // [SECTION] Misc data structures (ImGuiInputTextCallbackData, ImGuiSizeCallbackData, ImGuiPayload)
 // [SECTION] Helpers (ImGuiOnceUponAFrame, ImGuiTextFilter, ImGuiTextBuffer, ImGuiStorage, ImGuiListClipper, Math Operators, ImColor)
+// [SECTION] Multi-Select API flags and structures (ImGuiMultiSelectFlags, ImGuiMultiSelectIO, ImGuiSelectionRequest, ImGuiSelectionBasicStorage, ImGuiSelectionExternalStorage)
 // [SECTION] Drawing API (ImDrawCallback, ImDrawCmd, ImDrawIdx, ImDrawVert, ImDrawChannel, ImDrawListSplitter, ImDrawFlags, ImDrawListFlags, ImDrawList, ImDrawData)
 // [SECTION] Font API (ImFontConfig, ImFontGlyph, ImFontGlyphRangesBuilder, ImFontAtlasFlags, ImFontAtlas, ImFont)
 // [SECTION] Viewports (ImGuiViewportFlags, ImGuiViewport)
@ -174,9 +175,13 @@ struct ImGuiIO;                     // Main configuration and I/O between your a
 struct ImGuiInputTextCallbackData;  // Shared state of InputText() when using custom ImGuiInputTextCallback (rare/advanced use)
 struct ImGuiKeyData;                // Storage for ImGuiIO and IsKeyDown(), IsKeyPressed() etc functions.
 struct ImGuiListClipper;            // Helper to manually clip large list of items
+struct ImGuiMultiSelectIO;          // Structure to interact with a BeginMultiSelect()/EndMultiSelect() block
 struct ImGuiOnceUponAFrame;         // Helper for running a block of code not more than once a frame
 struct ImGuiPayload;                // User data payload for drag and drop operations
 struct ImGuiPlatformImeData;        // Platform IME data for io.PlatformSetImeDataFn() function.
+struct ImGuiSelectionBasicStorage;  // Optional helper to store multi-selection state + apply multi-selection requests.
+struct ImGuiSelectionExternalStorage;//Optional helper to apply multi-selection requests to existing randomly accessible storage.
+struct ImGuiSelectionRequest;       // A selection request (stored in ImGuiMultiSelectIO)
 struct ImGuiSizeCallbackData;       // Callback data when using SetNextWindowSizeConstraints() (rare/advanced use)
 struct ImGuiStorage;                // Helper for key->value storage (container sorted by key)
 struct ImGuiStoragePair;            // Helper for key->value storage (pair)
@ -227,6 +232,7 @@ typedef int ImGuiInputTextFlags;    // -> enum ImGuiInputTextFlags_  // Flags: f
 typedef int ImGuiItemFlags;         // -> enum ImGuiItemFlags_       // Flags: for PushItemFlag(), shared by all items
 typedef int ImGuiKeyChord;          // -> ImGuiKey | ImGuiMod_XXX    // Flags: for IsKeyChordPressed(), Shortcut() etc. an ImGuiKey optionally OR-ed with one or more ImGuiMod_XXX values.
 typedef int ImGuiPopupFlags;        // -> enum ImGuiPopupFlags_      // Flags: for OpenPopup*(), BeginPopupContext*(), IsPopupOpen()
+typedef int ImGuiMultiSelectFlags;  // -> enum ImGuiMultiSelectFlags_// Flags: for BeginMultiSelect()
 typedef int ImGuiSelectableFlags;   // -> enum ImGuiSelectableFlags_ // Flags: for Selectable()
 typedef int ImGuiSliderFlags;       // -> enum ImGuiSliderFlags_     // Flags: for DragFloat(), DragInt(), SliderFloat(), SliderInt() etc.
 typedef int ImGuiTabBarFlags;       // -> enum ImGuiTabBarFlags_     // Flags: for BeginTabBar()
@ -262,6 +268,11 @@ typedef ImWchar32 ImWchar;
 typedef ImWchar16 ImWchar;
 #endif

+// Multi-Selection item index or identifier when using BeginMultiSelect()
+// - Used by SetNextItemSelectionUserData() + and inside ImGuiMultiSelectIO structure.
+// - Most users are likely to use this store an item INDEX but this may be used to store a POINTER/ID as well. Read comments near ImGuiMultiSelectIO for details.
+typedef ImS64 ImGuiSelectionUserData;
+
 // Callback and functions types
 typedef int     (*ImGuiInputTextCallback)(ImGuiInputTextCallbackData* data);    // Callback function for ImGui::InputText()
 typedef void    (*ImGuiSizeCallback)(ImGuiSizeCallbackData* data);              // Callback function for ImGui::SetNextWindowSizeConstraints()
@ -381,10 +392,10 @@ namespace ImGui
    IMGUI_API bool          IsWindowFocused(ImGuiFocusedFlags flags=0); // is current window focused? or its root/child, depending on flags. see flags for options.
    IMGUI_API bool          IsWindowHovered(ImGuiHoveredFlags flags=0); // is current window hovered and hoverable (e.g. not blocked by a popup/modal)? See ImGuiHoveredFlags_ for options. IMPORTANT: If you are trying to check whether your mouse should be dispatched to Dear ImGui or to your underlying app, you should not use this function! Use the 'io.WantCaptureMouse' boolean for that! Refer to FAQ entry "How can I tell whether to dispatch mouse/keyboard to Dear ImGui or my application?" for details.
    IMGUI_API ImDrawList*   GetWindowDrawList();                        // get draw list associated to the current window, to append your own drawing primitives
-    IMGUI_API ImVec2        GetWindowPos();                             // get current window position in screen space (note: it is unlikely you need to use this. Consider using current layout pos instead, GetCursorScreenPos())
-    IMGUI_API ImVec2        GetWindowSize();                            // get current window size (note: it is unlikely you need to use this. Consider using GetCursorScreenPos() and e.g. GetContentRegionAvail() instead)
-    IMGUI_API float         GetWindowWidth();                           // get current window width (shortcut for GetWindowSize().x)
-    IMGUI_API float         GetWindowHeight();                          // get current window height (shortcut for GetWindowSize().y)
+    IMGUI_API ImVec2        GetWindowPos();                             // get current window position in screen space (IT IS UNLIKELY YOU EVER NEED TO USE THIS. Consider always using GetCursorScreenPos() and GetContentRegionAvail() instead)
+    IMGUI_API ImVec2        GetWindowSize();                            // get current window size (IT IS UNLIKELY YOU EVER NEED TO USE THIS. Consider always using GetCursorScreenPos() and GetContentRegionAvail() instead)
+    IMGUI_API float         GetWindowWidth();                           // get current window width (IT IS UNLIKELY YOU EVER NEED TO USE THIS). Shortcut for GetWindowSize().x.
+    IMGUI_API float         GetWindowHeight();                          // get current window height (IT IS UNLIKELY YOU EVER NEED TO USE THIS). Shortcut for GetWindowSize().y.

    // Window manipulation
    // - Prefer using SetNextXXX functions (before Begin) rather that SetXXX functions (after Begin).
@ -406,14 +417,6 @@ namespace ImGui
    IMGUI_API void          SetWindowCollapsed(const char* name, bool collapsed, ImGuiCond cond = 0);   // set named window collapsed state
    IMGUI_API void          SetWindowFocus(const char* name);                                           // set named window to be focused / top-most. use NULL to remove focus.

-    // Content region
-    // - Retrieve available space from a given point. GetContentRegionAvail() is frequently useful.
-    // - Those functions are bound to be redesigned (they are confusing, incomplete and the Min/Max return values are in local window coordinates which increases confusion)
-    IMGUI_API ImVec2        GetContentRegionAvail();                                        // == GetContentRegionMax() - GetCursorPos()
-    IMGUI_API ImVec2        GetContentRegionMax();                                          // current content boundaries (typically window boundaries including scrolling, or current column boundaries), in windows coordinates
-    IMGUI_API ImVec2        GetWindowContentRegionMin();                                    // content boundaries min for the full window (roughly (0,0)-Scroll), in window coordinates
-    IMGUI_API ImVec2        GetWindowContentRegionMax();                                    // content boundaries max for the full window (roughly (0,0)+Size-Scroll) where Size can be overridden with SetNextWindowContentSize(), in window coordinates
-
    // Windows Scrolling
    // - Any change of Scroll will be applied at the beginning of next frame in the first call to Begin().
    // - You may instead use SetNextWindowScroll() prior to calling Begin() to avoid this delay, as an alternative to using SetScrollX()/SetScrollY().
@ -462,19 +465,22 @@ namespace ImGui
    // - By "cursor" we mean the current output position.
    // - The typical widget behavior is to output themselves at the current cursor position, then move the cursor one line down.
    // - You can call SameLine() between widgets to undo the last carriage return and output at the right of the preceding widget.
+    // - YOU CAN DO 99% OF WHAT YOU NEED WITH ONLY GetCursorScreenPos() and GetContentRegionAvail().
    // - Attention! We currently have inconsistencies between window-local and absolute positions we will aim to fix with future API:
    //    - Absolute coordinate:        GetCursorScreenPos(), SetCursorScreenPos(), all ImDrawList:: functions. -> this is the preferred way forward.
-    //    - Window-local coordinates:   SameLine(), GetCursorPos(), SetCursorPos(), GetCursorStartPos(), GetContentRegionMax(), GetWindowContentRegion*(), PushTextWrapPos()
-    // - GetCursorScreenPos() = GetCursorPos() + GetWindowPos(). GetWindowPos() is almost only ever useful to convert from window-local to absolute coordinates.
-    IMGUI_API ImVec2        GetCursorScreenPos();                                           // cursor position in absolute coordinates (prefer using this, also more useful to work with ImDrawList API).
-    IMGUI_API void          SetCursorScreenPos(const ImVec2& pos);                          // cursor position in absolute coordinates
-    IMGUI_API ImVec2        GetCursorPos();                                                 // [window-local] cursor position in window coordinates (relative to window position)
+    //    - Window-local coordinates:   SameLine(offset), GetCursorPos(), SetCursorPos(), GetCursorStartPos(), PushTextWrapPos()
+    //    - Window-local coordinates:   GetContentRegionMax(), GetWindowContentRegionMin(), GetWindowContentRegionMax() --> all obsoleted. YOU DON'T NEED THEM.
+    // - GetCursorScreenPos() = GetCursorPos() + GetWindowPos(). GetWindowPos() is almost only ever useful to convert from window-local to absolute coordinates. Try not to use it.
+    IMGUI_API ImVec2        GetCursorScreenPos();                                           // cursor position, absolute coordinates. THIS IS YOUR BEST FRIEND (prefer using this rather than GetCursorPos(), also more useful to work with ImDrawList API).
+    IMGUI_API void          SetCursorScreenPos(const ImVec2& pos);                          // cursor position, absolute coordinates. THIS IS YOUR BEST FRIEND.
+    IMGUI_API ImVec2        GetContentRegionAvail();                                        // available space from current position. THIS IS YOUR BEST FRIEND.
+    IMGUI_API ImVec2        GetCursorPos();                                                 // [window-local] cursor position in window-local coordinates. This is not your best friend.
    IMGUI_API float         GetCursorPosX();                                                // [window-local] "
    IMGUI_API float         GetCursorPosY();                                                // [window-local] "
    IMGUI_API void          SetCursorPos(const ImVec2& local_pos);                          // [window-local] "
    IMGUI_API void          SetCursorPosX(float local_x);                                   // [window-local] "
    IMGUI_API void          SetCursorPosY(float local_y);                                   // [window-local] "
-    IMGUI_API ImVec2        GetCursorStartPos();                                            // [window-local] initial cursor position, in window coordinates
+    IMGUI_API ImVec2        GetCursorStartPos();                                            // [window-local] initial cursor position, in window-local coordinates. Call GetCursorScreenPos() after Begin() to get the absolute coordinates version.

    // Other layout functions
    IMGUI_API void          Separator();                                                    // separator, generally horizontal. inside a menu bar or in horizontal layout mode, this becomes a vertical separator.
@ -511,6 +517,7 @@ namespace ImGui
    IMGUI_API ImGuiID       GetID(const char* str_id);                                      // calculate unique ID (hash of whole ID stack + given parameter). e.g. if you want to query into ImGuiStorage yourself
    IMGUI_API ImGuiID       GetID(const char* str_id_begin, const char* str_id_end);
    IMGUI_API ImGuiID       GetID(const void* ptr_id);
+    IMGUI_API ImGuiID       GetID(int int_id);

    // Widgets: Text
    IMGUI_API void          TextUnformatted(const char* text, const char* text_end = NULL); // raw text without formatting. Roughly equivalent to Text("%s", text) but: A) doesn't require null terminated string if 'text_end' is specified, B) it's faster, no memory copy is done, no buffer size limits, recommended for long chunks of text.
@ -654,6 +661,7 @@ namespace ImGui
    IMGUI_API bool          CollapsingHeader(const char* label, ImGuiTreeNodeFlags flags = 0);  // if returning 'true' the header is open. doesn't indent nor push on ID stack. user doesn't have to call TreePop().
    IMGUI_API bool          CollapsingHeader(const char* label, bool* p_visible, ImGuiTreeNodeFlags flags = 0); // when 'p_visible != NULL': if '*p_visible==true' display an additional small close button on upper right of the header which will set the bool to false when clicked, if '*p_visible==false' don't display the header.
    IMGUI_API void          SetNextItemOpen(bool is_open, ImGuiCond cond = 0);                  // set next TreeNode/CollapsingHeader open state.
+    IMGUI_API void          SetNextItemStorageID(ImGuiID storage_id);                           // set id to use for open/close storage (default to same as item id).

    // Widgets: Selectables
    // - A selectable highlights when hovered, and can display another color when selected.
@ -661,6 +669,18 @@ namespace ImGui
    IMGUI_API bool          Selectable(const char* label, bool selected = false, ImGuiSelectableFlags flags = 0, const ImVec2& size = ImVec2(0, 0)); // "bool selected" carry the selection state (read-only). Selectable() is clicked is returns true so you can modify your selection state. size.x==0.0: use remaining width, size.x>0.0: specify width. size.y==0.0: use label height, size.y>0.0: specify height
    IMGUI_API bool          Selectable(const char* label, bool* p_selected, ImGuiSelectableFlags flags = 0, const ImVec2& size = ImVec2(0, 0));      // "bool* p_selected" point to the selection state (read-write), as a convenient helper.

+    // Multi-selection system for Selectable(), Checkbox(), TreeNode() functions [BETA]
+    // - This enables standard multi-selection/range-selection idioms (CTRL+Mouse/Keyboard, SHIFT+Mouse/Keyboard, etc.) in a way that also allow a clipper to be used.
+    // - ImGuiSelectionUserData is often used to store your item index within the current view (but may store something else).
+    // - Read comments near ImGuiMultiSelectIO for instructions/details and see 'Demo->Widgets->Selection State & Multi-Select' for demo.
+    // - TreeNode() is technically supported but... using this correctly is more complicated. You need some sort of linear/random access to your tree,
+    //   which is suited to advanced trees setups already implementing filters and clipper. We will work simplifying the current demo.
+    // - 'selection_size' and 'items_count' parameters are optional and used by a few features. If they are costly for you to compute, you may avoid them.
+    IMGUI_API ImGuiMultiSelectIO*   BeginMultiSelect(ImGuiMultiSelectFlags flags, int selection_size = -1, int items_count = -1);
+    IMGUI_API ImGuiMultiSelectIO*   EndMultiSelect();
+    IMGUI_API void                  SetNextItemSelectionUserData(ImGuiSelectionUserData selection_user_data);
+    IMGUI_API bool                  IsItemToggledSelection();                                   // Was the last item selection state toggled? Useful if you need the per-item information _before_ reaching EndMultiSelect(). We only returns toggle _event_ in order to handle clipping correctly.
+
    // Widgets: List Boxes
    // - This is essentially a thin wrapper to using BeginChild/EndChild with the ImGuiChildFlags_FrameStyle flag for stylistic changes + displaying a label.
    // - You can submit contents and manage your selection state however you want it, by creating e.g. Selectable() or any other items.
@ -961,6 +981,14 @@ namespace ImGui
    IMGUI_API bool          Shortcut(ImGuiKeyChord key_chord, ImGuiInputFlags flags = 0);
    IMGUI_API void          SetNextItemShortcut(ImGuiKeyChord key_chord, ImGuiInputFlags flags = 0);

+    // Inputs Utilities: Key/Input Ownership [BETA]
+    // - One common use case would be to allow your items to disable standard inputs behaviors such
+    //   as Tab or Alt key handling, Mouse Wheel scrolling, etc.
+    //   e.g. Button(...); SetItemKeyOwner(ImGuiKey_MouseWheelY); to make hovering/activating a button disable wheel for scrolling.
+    // - Reminder ImGuiKey enum include access to mouse buttons and gamepad, so key ownership can apply to them.
+    // - Many related features are still in imgui_internal.h. For instance, most IsKeyXXX()/IsMouseXXX() functions have an owner-id-aware version.
+    IMGUI_API void          SetItemKeyOwner(ImGuiKey key);                                      // Set key owner to last item ID if it is hovered or active. Equivalent to 'if (IsItemHovered() || IsItemActive()) { SetKeyOwner(key, GetItemID());'.
+
    // Inputs Utilities: Mouse specific
    // - To refer to a mouse button, you may use named enums in your code e.g. ImGuiMouseButton_Left, ImGuiMouseButton_Right.
    // - You can also use regular integer: it is forever guaranteed that 0=Left, 1=Right, 2=Middle.
@ -1059,7 +1087,7 @@ enum ImGuiWindowFlags_

    // Obsolete names
 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-    ImGuiWindowFlags_AlwaysUseWindowPadding = 1 << 30,  // Obsoleted in 1.90: Use ImGuiChildFlags_AlwaysUseWindowPadding in BeginChild() call.
+    ImGuiWindowFlags_AlwaysUseWindowPadding = 1 << 30,  // Obsoleted in 1.90.0: Use ImGuiChildFlags_AlwaysUseWindowPadding in BeginChild() call.
    ImGuiWindowFlags_NavFlattened           = 1 << 31,  // Obsoleted in 1.90.9: Use ImGuiChildFlags_NavFlattened in BeginChild() call.
 #endif
 };
@ -1084,7 +1112,7 @@ enum ImGuiChildFlags_
    ImGuiChildFlags_AutoResizeY             = 1 << 5,   // Enable auto-resizing height. Read "IMPORTANT: Size measurement" details above.
    ImGuiChildFlags_AlwaysAutoResize        = 1 << 6,   // Combined with AutoResizeX/AutoResizeY. Always measure size even when child is hidden, always return true, always disable clipping optimization! NOT RECOMMENDED.
    ImGuiChildFlags_FrameStyle              = 1 << 7,   // Style the child window like a framed item: use FrameBg, FrameRounding, FrameBorderSize, FramePadding instead of ChildBg, ChildRounding, ChildBorderSize, WindowPadding.
-    ImGuiChildFlags_NavFlattened            = 1 << 8,   // Share focus scope, allow gamepad/keyboard navigation to cross over parent border to this child or between sibling child windows.
+    ImGuiChildFlags_NavFlattened            = 1 << 8,   // [BETA] Share focus scope, allow gamepad/keyboard navigation to cross over parent border to this child or between sibling child windows.
 };

 // Flags for ImGui::PushItemFlag()
@ -1201,6 +1229,7 @@ enum ImGuiSelectableFlags_
    ImGuiSelectableFlags_AllowDoubleClick   = 1 << 2,   // Generate press events on double clicks too
    ImGuiSelectableFlags_Disabled           = 1 << 3,   // Cannot be selected, display grayed out text
    ImGuiSelectableFlags_AllowOverlap       = 1 << 4,   // (WIP) Hit testing to allow subsequent widgets to overlap this one
+    ImGuiSelectableFlags_Highlight          = 1 << 5,   // Make the item be displayed as if it is hovered

 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
    ImGuiSelectableFlags_DontClosePopups    = ImGuiSelectableFlags_NoAutoClosePopups,   // Renamed in 1.91.0
@ -1680,6 +1709,7 @@ enum ImGuiStyleVar_
    ImGuiStyleVar_TabRounding,              // float     TabRounding
    ImGuiStyleVar_TabBorderSize,            // float     TabBorderSize
    ImGuiStyleVar_TabBarBorderSize,         // float     TabBarBorderSize
+    ImGuiStyleVar_TabBarOverlineSize,       // float     TabBarOverlineSize
    ImGuiStyleVar_TableAngledHeadersAngle,  // float     TableAngledHeadersAngle
    ImGuiStyleVar_TableAngledHeadersTextAlign,// ImVec2  TableAngledHeadersTextAlign
    ImGuiStyleVar_ButtonTextAlign,          // ImVec2    ButtonTextAlign
@ -2123,12 +2153,13 @@ struct ImGuiStyle
    float       TabBorderSize;              // Thickness of border around tabs.
    float       TabMinWidthForCloseButton;  // Minimum width for close button to appear on an unselected tab when hovered. Set to 0.0f to always show when hovering, set to FLT_MAX to never show close button unless selected.
    float       TabBarBorderSize;           // Thickness of tab-bar separator, which takes on the tab active color to denote focus.
+    float       TabBarOverlineSize;         // Thickness of tab-bar overline, which highlights the selected tab-bar.
    float       TableAngledHeadersAngle;    // Angle of angled headers (supported values range from -50.0f degrees to +50.0f degrees).
    ImVec2      TableAngledHeadersTextAlign;// Alignment of angled headers within the cell
    ImGuiDir    ColorButtonPosition;        // Side of the color button in the ColorEdit4 widget (left/right). Defaults to ImGuiDir_Right.
    ImVec2      ButtonTextAlign;            // Alignment of button text when button is larger than text. Defaults to (0.5f, 0.5f) (centered).
    ImVec2      SelectableTextAlign;        // Alignment of selectable text. Defaults to (0.0f, 0.0f) (top-left aligned). It's generally important to keep this left-aligned if you want to lay multiple items on a same line.
-    float       SeparatorTextBorderSize;    // Thickkness of border in SeparatorText()
+    float       SeparatorTextBorderSize;    // Thickness of border in SeparatorText()
    ImVec2      SeparatorTextAlign;         // Alignment of text within the separator. Defaults to (0.0f, 0.5f) (left aligned, center).
    ImVec2      SeparatorTextPadding;       // Horizontal offset of text from each edge of the separator + spacing on other axis. Generally small values. .y is recommended to be == FramePadding.y.
    ImVec2      DisplayWindowPadding;       // Apply to regular windows: amount which we enforce to keep visible when moving near edges of your screen.
@ -2197,6 +2228,7 @@ struct ImGuiIO
    // Miscellaneous options
    bool        MouseDrawCursor;                // = false          // Request ImGui to draw a mouse cursor for you (if you are on a platform without a mouse cursor). Cannot be easily renamed to 'io.ConfigXXX' because this is frequently used by backend implementations.
    bool        ConfigMacOSXBehaviors;          // = defined(__APPLE__) // Swap Cmd<>Ctrl keys + OS X style text editing cursor movement using Alt instead of Ctrl, Shortcuts using Cmd/Super instead of Ctrl, Line/Text Start and End using Cmd+Arrows instead of Home/End, Double click selects by word instead of selecting whole text, Multi-selection in lists uses Cmd/Super instead of Ctrl.
+    bool        ConfigNavSwapGamepadButtons;    // = false          // Swap Activate<>Cancel (A<>B) buttons, matching typical "Nintendo/Japanese style" gamepad layout.
    bool        ConfigInputTrickleEventQueue;   // = true           // Enable input queue trickling: some types of events submitted during the same frame (e.g. button down + up) will be spread over multiple frames, improving interactions with low framerates.
    bool        ConfigInputTextCursorBlink;     // = true           // Enable blinking cursor (optional as some users consider it to be distracting).
    bool        ConfigInputTextEnterKeepActive; // = false          // [BETA] Pressing Enter will keep item active and select contents (single-line only).
@ -2702,6 +2734,154 @@ struct ImColor
    static ImColor HSV(float h, float s, float v, float a = 1.0f)   { float r, g, b; ImGui::ColorConvertHSVtoRGB(h, s, v, r, g, b); return ImColor(r, g, b, a); }
 };

+//-----------------------------------------------------------------------------
+// [SECTION] Multi-Select API flags and structures (ImGuiMultiSelectFlags, ImGuiSelectionRequestType, ImGuiSelectionRequest, ImGuiMultiSelectIO, ImGuiSelectionBasicStorage)
+//-----------------------------------------------------------------------------
+
+// Multi-selection system
+// Documentation at: https://github.com/ocornut/imgui/wiki/Multi-Select
+// - Refer to 'Demo->Widgets->Selection State & Multi-Select' for demos using this.
+// - This system implements standard multi-selection idioms (CTRL+Mouse/Keyboard, SHIFT+Mouse/Keyboard, etc)
+//   with support for clipper (skipping non-visible items), box-select and many other details.
+// - Selectable(), Checkbox() are supported but custom widgets may use it as well.
+// - TreeNode() is technically supported but... using this correctly is more complicated: you need some sort of linear/random access to your tree,
+//   which is suited to advanced trees setups also implementing filters and clipper. We will work toward simplifying and demoing it.
+// - In the spirit of Dear ImGui design, your code owns actual selection data.
+//   This is designed to allow all kinds of selection storage you may use in your application e.g. set/map/hash.
+// About ImGuiSelectionBasicStorage:
+// - This is an optional helper to store a selection state and apply selection requests.
+// - It is used by our demos and provided as a convenience to quickly implement multi-selection.
+// Usage:
+// - Identify submitted items with SetNextItemSelectionUserData(), most likely using an index into your current data-set.
+// - Store and maintain actual selection data using persistent object identifiers.
+// - Usage flow:
+//     BEGIN - (1) Call BeginMultiSelect() and retrieve the ImGuiMultiSelectIO* result.
+//           - (2) Honor request list (SetAll/SetRange requests) by updating your selection data. Same code as Step 6.
+//           - (3) [If using clipper] You need to make sure RangeSrcItem is always submitted. Calculate its index and pass to clipper.IncludeItemByIndex(). If storing indices in ImGuiSelectionUserData, a simple clipper.IncludeItemByIndex(ms_io->RangeSrcItem) call will work.
+//     LOOP  - (4) Submit your items with SetNextItemSelectionUserData() + Selectable()/TreeNode() calls.
+//     END   - (5) Call EndMultiSelect() and retrieve the ImGuiMultiSelectIO* result.
+//           - (6) Honor request list (SetAll/SetRange requests) by updating your selection data. Same code as Step 2.
+//     If you submit all items (no clipper), Step 2 and 3 are optional and will be handled by each item themselves. It is fine to always honor those steps.
+// About ImGuiSelectionUserData:
+// - This can store an application-defined identifier (e.g. index or pointer) submitted via SetNextItemSelectionUserData().
+// - In return we store them into RangeSrcItem/RangeFirstItem/RangeLastItem and other fields in ImGuiMultiSelectIO.
+// - Most applications will store an object INDEX, hence the chosen name and type. Storing an index is natural, because
+//   SetRange requests will give you two end-points and you will need to iterate/interpolate between them to update your selection.
+// - However it is perfectly possible to store a POINTER or another IDENTIFIER inside ImGuiSelectionUserData.
+//   Our system never assume that you identify items by indices, it never attempts to interpolate between two values.
+// - If you enable ImGuiMultiSelectFlags_NoRangeSelect then it is guaranteed that you will never have to interpolate
+//   between two ImGuiSelectionUserData, which may be a convenient way to use part of the feature with less code work.
+// - As most users will want to store an index, for convenience and to reduce confusion we use ImS64 instead of void*,
+//   being syntactically easier to downcast. Feel free to reinterpret_cast and store a pointer inside.
+
+// Flags for BeginMultiSelect()
+enum ImGuiMultiSelectFlags_
+{
+    ImGuiMultiSelectFlags_None                  = 0,
+    ImGuiMultiSelectFlags_SingleSelect          = 1 << 0,   // Disable selecting more than one item. This is available to allow single-selection code to share same code/logic if desired. It essentially disables the main purpose of BeginMultiSelect() tho!
+    ImGuiMultiSelectFlags_NoSelectAll           = 1 << 1,   // Disable CTRL+A shortcut to select all.
+    ImGuiMultiSelectFlags_NoRangeSelect         = 1 << 2,   // Disable Shift+selection mouse/keyboard support (useful for unordered 2D selection). With BoxSelect is also ensure contiguous SetRange requests are not combined into one. This allows not handling interpolation in SetRange requests.
+    ImGuiMultiSelectFlags_NoAutoSelect          = 1 << 3,   // Disable selecting items when navigating (useful for e.g. supporting range-select in a list of checkboxes).
+    ImGuiMultiSelectFlags_NoAutoClear           = 1 << 4,   // Disable clearing selection when navigating or selecting another one (generally used with ImGuiMultiSelectFlags_NoAutoSelect. useful for e.g. supporting range-select in a list of checkboxes).
+    ImGuiMultiSelectFlags_NoAutoClearOnReselect = 1 << 5,   // Disable clearing selection when clicking/selecting an already selected item.
+    ImGuiMultiSelectFlags_BoxSelect1d           = 1 << 6,   // Enable box-selection with same width and same x pos items (e.g. full row Selectable()). Box-selection works better with little bit of spacing between items hit-box in order to be able to aim at empty space.
+    ImGuiMultiSelectFlags_BoxSelect2d           = 1 << 7,   // Enable box-selection with varying width or varying x pos items support (e.g. different width labels, or 2D layout/grid). This is slower: alters clipping logic so that e.g. horizontal movements will update selection of normally clipped items.
+    ImGuiMultiSelectFlags_BoxSelectNoScroll     = 1 << 8,   // Disable scrolling when box-selecting near edges of scope.
+    ImGuiMultiSelectFlags_ClearOnEscape         = 1 << 9,   // Clear selection when pressing Escape while scope is focused.
+    ImGuiMultiSelectFlags_ClearOnClickVoid      = 1 << 10,  // Clear selection when clicking on empty location within scope.
+    ImGuiMultiSelectFlags_ScopeWindow           = 1 << 11,  // Scope for _BoxSelect and _ClearOnClickVoid is whole window (Default). Use if BeginMultiSelect() covers a whole window or used a single time in same window.
+    ImGuiMultiSelectFlags_ScopeRect             = 1 << 12,  // Scope for _BoxSelect and _ClearOnClickVoid is rectangle encompassing BeginMultiSelect()/EndMultiSelect(). Use if BeginMultiSelect() is called multiple times in same window.
+    ImGuiMultiSelectFlags_SelectOnClick         = 1 << 13,  // Apply selection on mouse down when clicking on unselected item. (Default)
+    ImGuiMultiSelectFlags_SelectOnClickRelease  = 1 << 14,  // Apply selection on mouse release when clicking an unselected item. Allow dragging an unselected item without altering selection.
+    //ImGuiMultiSelectFlags_RangeSelect2d       = 1 << 15,  // Shift+Selection uses 2d geometry instead of linear sequence, so possible to use Shift+up/down to select vertically in grid. Analogous to what BoxSelect does.
+    ImGuiMultiSelectFlags_NavWrapX              = 1 << 16,  // [Temporary] Enable navigation wrapping on X axis. Provided as a convenience because we don't have a design for the general Nav API for this yet. When the more general feature be public we may obsolete this flag in favor of new one.
+};
+
+// Main IO structure returned by BeginMultiSelect()/EndMultiSelect().
+// This mainly contains a list of selection requests.
+// - Use 'Demo->Tools->Debug Log->Selection' to see requests as they happen.
+// - Some fields are only useful if your list is dynamic and allows deletion (getting post-deletion focus/state right is shown in the demo)
+// - Below: who reads/writes each fields? 'r'=read, 'w'=write, 'ms'=multi-select code, 'app'=application/user code.
+struct ImGuiMultiSelectIO
+{
+    //------------------------------------------// BeginMultiSelect / EndMultiSelect
+    ImVector<ImGuiSelectionRequest> Requests;   //  ms:w, app:r     /  ms:w  app:r   // Requests to apply to your selection data.
+    ImGuiSelectionUserData      RangeSrcItem;   //  ms:w  app:r     /                // (If using clipper) Begin: Source item (often the first selected item) must never be clipped: use clipper.IncludeItemByIndex() to ensure it is submitted.
+    ImGuiSelectionUserData      NavIdItem;      //  ms:w, app:r     /                // (If using deletion) Last known SetNextItemSelectionUserData() value for NavId (if part of submitted items).
+    bool                        NavIdSelected;  //  ms:w, app:r     /        app:r   // (If using deletion) Last known selection state for NavId (if part of submitted items).
+    bool                        RangeSrcReset;  //        app:w     /  ms:r          // (If using deletion) Set before EndMultiSelect() to reset ResetSrcItem (e.g. if deleted selection).
+    int                         ItemsCount;     //  ms:w, app:r     /        app:r   // 'int items_count' parameter to BeginMultiSelect() is copied here for convenience, allowing simpler calls to your ApplyRequests handler. Not used internally.
+};
+
+// Selection request type
+enum ImGuiSelectionRequestType
+{
+    ImGuiSelectionRequestType_None = 0,
+    ImGuiSelectionRequestType_SetAll,           // Request app to clear selection (if Selected==false) or select all items (if Selected==true). We cannot set RangeFirstItem/RangeLastItem as its contents is entirely up to user (not necessarily an index)
+    ImGuiSelectionRequestType_SetRange,         // Request app to select/unselect [RangeFirstItem..RangeLastItem] items (inclusive) based on value of Selected. Only EndMultiSelect() request this, app code can read after BeginMultiSelect() and it will always be false.
+};
+
+// Selection request item
+struct ImGuiSelectionRequest
+{
+    //------------------------------------------// BeginMultiSelect / EndMultiSelect
+    ImGuiSelectionRequestType   Type;           //  ms:w, app:r     /  ms:w, app:r   // Request type. You'll most often receive 1 Clear + 1 SetRange with a single-item range.
+    bool                        Selected;       //  ms:w, app:r     /  ms:w, app:r   // Parameter for SetAll/SetRange requests (true = select, false = unselect)
+    ImS8                        RangeDirection; //                  /  ms:w  app:r   // Parameter for SetRange request: +1 when RangeFirstItem comes before RangeLastItem, -1 otherwise. Useful if you want to preserve selection order on a backward Shift+Click.
+    ImGuiSelectionUserData      RangeFirstItem; //                  /  ms:w, app:r   // Parameter for SetRange request (this is generally == RangeSrcItem when shift selecting from top to bottom).
+    ImGuiSelectionUserData      RangeLastItem;  //                  /  ms:w, app:r   // Parameter for SetRange request (this is generally == RangeSrcItem when shift selecting from bottom to top). Inclusive!
+};
+
+// Optional helper to store multi-selection state + apply multi-selection requests.
+// - Used by our demos and provided as a convenience to easily implement basic multi-selection.
+// - Iterate selection with 'void* it = NULL; ImGuiID id; while (selection.GetNextSelectedItem(&it, &id)) { ... }'
+//   Or you can check 'if (Contains(id)) { ... }' for each possible object if their number is not too high to iterate.
+// - USING THIS IS NOT MANDATORY. This is only a helper and not a required API.
+// To store a multi-selection, in your application you could:
+// - Use this helper as a convenience. We use our simple key->value ImGuiStorage as a std::set<ImGuiID> replacement.
+// - Use your own external storage: e.g. std::set<MyObjectId>, std::vector<MyObjectId>, interval trees, intrusively stored selection etc.
+// In ImGuiSelectionBasicStorage we:
+// - always use indices in the multi-selection API (passed to SetNextItemSelectionUserData(), retrieved in ImGuiMultiSelectIO)
+// - use the AdapterIndexToStorageId() indirection layer to abstract how persistent selection data is derived from an index.
+// - use decently optimized logic to allow queries and insertion of very large selection sets.
+// - do not preserve selection order.
+// Many combinations are possible depending on how you prefer to store your items and how you prefer to store your selection.
+// Large applications are likely to eventually want to get rid of this indirection layer and do their own thing.
+// See https://github.com/ocornut/imgui/wiki/Multi-Select for details and pseudo-code using this helper.
+struct ImGuiSelectionBasicStorage
+{
+    // Members
+    int             Size;           //          // Number of selected items, maintained by this helper.
+    bool            PreserveOrder;  // = false  // GetNextSelectedItem() will return ordered selection (currently implemented by two additional sorts of selection. Could be improved)
+    void*           UserData;       // = NULL   // User data for use by adapter function        // e.g. selection.UserData = (void*)my_items;
+    ImGuiID         (*AdapterIndexToStorageId)(ImGuiSelectionBasicStorage* self, int idx);      // e.g. selection.AdapterIndexToStorageId = [](ImGuiSelectionBasicStorage* self, int idx) { return ((MyItems**)self->UserData)[idx]->ID; };
+    int             _SelectionOrder;// [Internal] Increasing counter to store selection order
+    ImGuiStorage    _Storage;       // [Internal] Selection set. Think of this as similar to e.g. std::set<ImGuiID>. Prefer not accessing directly: iterate with GetNextSelectedItem().
+
+    // Methods
+    ImGuiSelectionBasicStorage();
+    IMGUI_API void  ApplyRequests(ImGuiMultiSelectIO* ms_io);   // Apply selection requests coming from BeginMultiSelect() and EndMultiSelect() functions. It uses 'items_count' passed to BeginMultiSelect()
+    IMGUI_API bool  Contains(ImGuiID id) const;                 // Query if an item id is in selection.
+    IMGUI_API void  Clear();                                    // Clear selection
+    IMGUI_API void  Swap(ImGuiSelectionBasicStorage& r);        // Swap two selections
+    IMGUI_API void  SetItemSelected(ImGuiID id, bool selected); // Add/remove an item from selection (generally done by ApplyRequests() function)
+    IMGUI_API bool  GetNextSelectedItem(void** opaque_it, ImGuiID* out_id); // Iterate selection with 'void* it = NULL; ImGuiId id; while (selection.GetNextSelectedItem(&it, &id)) { ... }'
+    inline ImGuiID  GetStorageIdFromIndex(int idx)              { return AdapterIndexToStorageId(this, idx); }  // Convert index to item id based on provided adapter.
+};
+
+// Optional helper to apply multi-selection requests to existing randomly accessible storage.
+// Convenient if you want to quickly wire multi-select API on e.g. an array of bool or items storing their own selection state.
+struct ImGuiSelectionExternalStorage
+{
+    // Members
+    void*           UserData;       // User data for use by adapter function                                // e.g. selection.UserData = (void*)my_items;
+    void            (*AdapterSetItemSelected)(ImGuiSelectionExternalStorage* self, int idx, bool selected); // e.g. AdapterSetItemSelected = [](ImGuiSelectionExternalStorage* self, int idx, bool selected) { ((MyItems**)self->UserData)[idx]->Selected = selected; }
+
+    // Methods
+    IMGUI_API ImGuiSelectionExternalStorage();
+    IMGUI_API void  ApplyRequests(ImGuiMultiSelectIO* ms_io);   // Apply selection requests by using AdapterSetItemSelected() calls
+};
+
 //-----------------------------------------------------------------------------
 // [SECTION] Drawing API (ImDrawCmd, ImDrawIdx, ImDrawVert, ImDrawChannel, ImDrawListSplitter, ImDrawListFlags, ImDrawList, ImDrawData)
 // Hold a series of drawing commands. The user provides a renderer for ImDrawData which essentially contains an array of ImDrawList.
@ -3323,6 +3503,9 @@ namespace ImGui
    static inline void  PopButtonRepeat()                                       { PopItemFlag(); }
    static inline void  PushTabStop(bool tab_stop)                              { PushItemFlag(ImGuiItemFlags_NoTabStop, !tab_stop); }
    static inline void  PopTabStop()                                            { PopItemFlag(); }
+    IMGUI_API ImVec2    GetContentRegionMax();                                  // Content boundaries max (e.g. window boundaries including scrolling, or current column boundaries). You should never need this. Always use GetCursorScreenPos() and GetContentRegionAvail()!
+    IMGUI_API ImVec2    GetWindowContentRegionMin();                            // Content boundaries min for the window (roughly (0,0)-Scroll), in window-local coordinates. You should never need this. Always use GetCursorScreenPos() and GetContentRegionAvail()!
+    IMGUI_API ImVec2    GetWindowContentRegionMax();                            // Content boundaries max for the window (roughly (0,0)+Size-Scroll), in window-local coordinates. You should never need this. Always use GetCursorScreenPos() and GetContentRegionAvail()!
    // OBSOLETED in 1.90.0 (from September 2023)
    static inline bool  BeginChildFrame(ImGuiID id, const ImVec2& size, ImGuiWindowFlags window_flags = 0)  { return BeginChild(id, size, ImGuiChildFlags_FrameStyle, window_flags); }
    static inline void  EndChildFrame()                                                                     { EndChild(); }
--- a/external/imgui/imgui/imgui_demo.cpp
+++ b/external/imgui/imgui/imgui_demo.cpp
--- a/external/imgui/imgui/imgui_draw.cpp
+++ b/external/imgui/imgui/imgui_draw.cpp
@ -1,4 +1,4 @@
-// dear imgui, v1.91.0 WIP
+// dear imgui, v1.91.0
 // (drawing and font code)

 /*
--- a/external/imgui/imgui/imgui_internal.h
+++ b/external/imgui/imgui/imgui_internal.h
@ -1,4 +1,4 @@
-// dear imgui, v1.91.0 WIP
+// dear imgui, v1.91.0
 // (internal structures/api)

 // You may use this file to debug, understand or extend Dear ImGui features but we don't provide any guarantee of forward compatibility.
@ -22,6 +22,7 @@ Index of this file:
 // [SECTION] Navigation support
 // [SECTION] Typing-select support
 // [SECTION] Columns support
+// [SECTION] Box-select support
 // [SECTION] Multi-select support
 // [SECTION] Docking support
 // [SECTION] Viewport support
@ -123,6 +124,7 @@ struct ImBitVector;                 // Store 1-bit per value
 struct ImRect;                      // An axis-aligned rectangle (2 points)
 struct ImDrawDataBuilder;           // Helper to build a ImDrawData instance
 struct ImDrawListSharedData;        // Data shared between all ImDrawList instances
+struct ImGuiBoxSelectState;         // Box-selection state (currently used by multi-selection, could potentially be used by others)
 struct ImGuiColorMod;               // Stacked color modifier, backup of modified data so we can restore it
 struct ImGuiContext;                // Main Dear ImGui context
 struct ImGuiContextHook;            // Hook for extensions like ImGuiTestEngine
@ -134,6 +136,8 @@ struct ImGuiInputTextDeactivateData;// Short term storage to backup text of a de
 struct ImGuiLastItemData;           // Status storage for last submitted items
 struct ImGuiLocEntry;               // A localization entry.
 struct ImGuiMenuColumns;            // Simple column measurement, currently used for MenuItem() only
+struct ImGuiMultiSelectState;       // Multi-selection persistent state (for focused selection).
+struct ImGuiMultiSelectTempData;    // Multi-selection temporary state (while traversing).
 struct ImGuiNavItemData;            // Result of a gamepad/keyboard directional navigation move query result
 struct ImGuiMetricsConfig;          // Storage for ShowMetricsWindow() and DebugNodeXXX() functions
 struct ImGuiNextWindowData;         // Storage for SetNextWindow** functions
@ -384,6 +388,7 @@ IM_MSVC_RUNTIME_CHECKS_OFF
 static inline char      ImToUpper(char c)               { return (c >= 'a' && c <= 'z') ? c &= ~32 : c; }
 static inline bool      ImCharIsBlankA(char c)          { return c == ' ' || c == '\t'; }
 static inline bool      ImCharIsBlankW(unsigned int c)  { return c == ' ' || c == '\t' || c == 0x3000; }
+static inline bool      ImCharIsXdigitA(char c)         { return (c >= '0' && c <= '9') || (c >= 'A' && c <= 'F') || (c >= 'a' && c <= 'f'); }
 IM_MSVC_RUNTIME_CHECKS_RESTORE

 // Helpers: Formatting
@ -488,6 +493,7 @@ static inline int    ImModPositive(int a, int b)
 static inline float  ImDot(const ImVec2& a, const ImVec2& b)                    { return a.x * b.x + a.y * b.y; }
 static inline ImVec2 ImRotate(const ImVec2& v, float cos_a, float sin_a)        { return ImVec2(v.x * cos_a - v.y * sin_a, v.x * sin_a + v.y * cos_a); }
 static inline float  ImLinearSweep(float current, float target, float speed)    { if (current < target) return ImMin(current + speed, target); if (current > target) return ImMax(current - speed, target); return current; }
+static inline float  ImLinearRemapClamp(float s0, float s1, float d0, float d1, float x) { return ImSaturate((x - s0) / (s1 - s0)) * (d1 - d0) + d0; }
 static inline ImVec2 ImMul(const ImVec2& lhs, const ImVec2& rhs)                { return ImVec2(lhs.x * rhs.x, lhs.y * rhs.y); }
 static inline bool   ImIsFloatAboveGuaranteedIntegerPrecision(float f)          { return f <= -16777216 || f >= 16777216; }
 static inline float  ImExponentialMovingAverage(float avg, float sample, int n) { avg -= avg / n; avg += sample / n; return avg; }
@ -854,6 +860,7 @@ enum ImGuiItemFlagsPrivate_
    // Controlled by widget code
    ImGuiItemFlags_Inputable                = 1 << 20, // false     // [WIP] Auto-activate input mode when tab focused. Currently only used and supported by a few items before it becomes a generic feature.
    ImGuiItemFlags_HasSelectionUserData     = 1 << 21, // false     // Set by SetNextItemSelectionUserData()
+    ImGuiItemFlags_IsMultiSelect            = 1 << 22, // false     // Set by SetNextItemSelectionUserData()

    ImGuiItemFlags_Default_                 = ImGuiItemFlags_AutoClosePopups,    // Please don't change, use PushItemFlag() instead.

@ -1201,10 +1208,6 @@ struct ImGuiNextWindowData
    inline void ClearFlags()    { Flags = ImGuiNextWindowDataFlags_None; }
 };

-// Multi-Selection item index or identifier when using SetNextItemSelectionUserData()/BeginMultiSelect()
-// (Most users are likely to use this store an item INDEX but this may be used to store a POINTER as well.)
-typedef ImS64 ImGuiSelectionUserData;
-
 enum ImGuiNextItemDataFlags_
 {
    ImGuiNextItemDataFlags_None         = 0,
@ -1212,13 +1215,15 @@ enum ImGuiNextItemDataFlags_
    ImGuiNextItemDataFlags_HasOpen      = 1 << 1,
    ImGuiNextItemDataFlags_HasShortcut  = 1 << 2,
    ImGuiNextItemDataFlags_HasRefVal    = 1 << 3,
+    ImGuiNextItemDataFlags_HasStorageID = 1 << 4,
 };

 struct ImGuiNextItemData
 {
    ImGuiNextItemDataFlags      Flags;
-    ImGuiItemFlags              ItemFlags;          // Currently only tested/used for ImGuiItemFlags_AllowOverlap.
+    ImGuiItemFlags              ItemFlags;          // Currently only tested/used for ImGuiItemFlags_AllowOverlap and ImGuiItemFlags_HasSelectionUserData.
    // Non-flags members are NOT cleared by ItemAdd() meaning they are still valid during NavProcessItem()
+    ImGuiID                     FocusScopeId;       // Set by SetNextItemSelectionUserData()
    ImGuiSelectionUserData      SelectionUserData;  // Set by SetNextItemSelectionUserData() (note that NULL/0 is a valid value, we use -1 == ImGuiSelectionUserData_Invalid to mark invalid values)
    float                       Width;              // Set by SetNextItemWidth()
    ImGuiKeyChord               Shortcut;           // Set by SetNextItemShortcut()
@ -1226,6 +1231,7 @@ struct ImGuiNextItemData
    bool                        OpenVal;            // Set by SetNextItemOpen()
    ImU8                        OpenCond;           // Set by SetNextItemOpen()
    ImGuiDataTypeStorage        RefVal;             // Not exposed yet, for ImGuiInputTextFlags_ParseEmptyAsRefVal
+    ImGuiID                     StorageId;          // Set by SetNextItemStorageID()

    ImGuiNextItemData()         { memset(this, 0, sizeof(*this)); SelectionUserData = -1; }
    inline void ClearFlags()    { Flags = ImGuiNextItemDataFlags_None; ItemFlags = ImGuiItemFlags_None; } // Also cleared manually by ItemAdd()!
@ -1351,8 +1357,8 @@ typedef ImBitArray<ImGuiKey_NamedKey_COUNT, -ImGuiKey_NamedKey_BEGIN>    ImBitAr
 #define ImGuiKey_NavKeyboardTweakFast   ImGuiMod_Shift
 #define ImGuiKey_NavGamepadTweakSlow    ImGuiKey_GamepadL1
 #define ImGuiKey_NavGamepadTweakFast    ImGuiKey_GamepadR1
-#define ImGuiKey_NavGamepadActivate     ImGuiKey_GamepadFaceDown
-#define ImGuiKey_NavGamepadCancel       ImGuiKey_GamepadFaceRight
+#define ImGuiKey_NavGamepadActivate     (g.IO.ConfigNavSwapGamepadButtons ? ImGuiKey_GamepadFaceRight : ImGuiKey_GamepadFaceDown)
+#define ImGuiKey_NavGamepadCancel       (g.IO.ConfigNavSwapGamepadButtons ? ImGuiKey_GamepadFaceDown : ImGuiKey_GamepadFaceRight)
 #define ImGuiKey_NavGamepadMenu         ImGuiKey_GamepadFaceLeft
 #define ImGuiKey_NavGamepadInput        ImGuiKey_GamepadFaceUp

@ -1704,6 +1710,34 @@ struct ImGuiOldColumns
    ImGuiOldColumns()   { memset(this, 0, sizeof(*this)); }
 };

+//-----------------------------------------------------------------------------
+// [SECTION] Box-select support
+//-----------------------------------------------------------------------------
+
+struct ImGuiBoxSelectState
+{
+    // Active box-selection data (persistent, 1 active at a time)
+    ImGuiID                 ID;
+    bool                    IsActive;
+    bool                    IsStarting;
+    bool                    IsStartedFromVoid;  // Starting click was not from an item.
+    bool                    IsStartedSetNavIdOnce;
+    bool                    RequestClear;
+    ImGuiKeyChord           KeyMods : 16;       // Latched key-mods for box-select logic.
+    ImVec2                  StartPosRel;        // Start position in window-contents relative space (to support scrolling)
+    ImVec2                  EndPosRel;          // End position in window-contents relative space
+    ImVec2                  ScrollAccum;        // Scrolling accumulator (to behave at high-frame spaces)
+    ImGuiWindow*            Window;
+
+    // Temporary/Transient data
+    bool                    UnclipMode;         // (Temp/Transient, here in hot area). Set/cleared by the BeginMultiSelect()/EndMultiSelect() owning active box-select.
+    ImRect                  UnclipRect;         // Rectangle where ItemAdd() clipping may be temporarily disabled. Need support by multi-select supporting widgets.
+    ImRect                  BoxSelectRectPrev;  // Selection rectangle in absolute coordinates (derived every frame from BoxSelectStartPosRel and MousePos)
+    ImRect                  BoxSelectRectCurr;
+
+    ImGuiBoxSelectState()   { memset(this, 0, sizeof(*this)); }
+};
+
 //-----------------------------------------------------------------------------
 // [SECTION] Multi-select support
 //-----------------------------------------------------------------------------
@ -1711,9 +1745,45 @@ struct ImGuiOldColumns
 // We always assume that -1 is an invalid value (which works for indices and pointers)
 #define ImGuiSelectionUserData_Invalid        ((ImGuiSelectionUserData)-1)

-#ifdef IMGUI_HAS_MULTI_SELECT
-// <this is filled in 'range_select' branch>
-#endif // #ifdef IMGUI_HAS_MULTI_SELECT
+// Temporary storage for multi-select
+struct IMGUI_API ImGuiMultiSelectTempData
+{
+    ImGuiMultiSelectIO      IO;                 // MUST BE FIRST FIELD. Requests are set and returned by BeginMultiSelect()/EndMultiSelect() + written to by user during the loop.
+    ImGuiMultiSelectState*  Storage;
+    ImGuiID                 FocusScopeId;       // Copied from g.CurrentFocusScopeId (unless another selection scope was pushed manually)
+    ImGuiMultiSelectFlags   Flags;
+    ImVec2                  ScopeRectMin;
+    ImVec2                  BackupCursorMaxPos;
+    ImGuiSelectionUserData  LastSubmittedItem;  // Copy of last submitted item data, used to merge output ranges.
+    ImGuiID                 BoxSelectId;
+    ImGuiKeyChord           KeyMods;
+    ImS8                    LoopRequestSetAll;  // -1: no operation, 0: clear all, 1: select all.
+    bool                    IsEndIO;            // Set when switching IO from BeginMultiSelect() to EndMultiSelect() state.
+    bool                    IsFocused;          // Set if currently focusing the selection scope (any item of the selection). May be used if you have custom shortcut associated to selection.
+    bool                    IsKeyboardSetRange; // Set by BeginMultiSelect() when using Shift+Navigation. Because scrolling may be affected we can't afford a frame of lag with Shift+Navigation.
+    bool                    NavIdPassedBy;
+    bool                    RangeSrcPassedBy;   // Set by the item that matches RangeSrcItem.
+    bool                    RangeDstPassedBy;   // Set by the item that matches NavJustMovedToId when IsSetRange is set.
+
+    ImGuiMultiSelectTempData()  { Clear(); }
+    void Clear()            { size_t io_sz = sizeof(IO); ClearIO(); memset((void*)(&IO + 1), 0, sizeof(*this) - io_sz); } // Zero-clear except IO as we preserve IO.Requests[] buffer allocation.
+    void ClearIO()          { IO.Requests.resize(0); IO.RangeSrcItem = IO.NavIdItem = ImGuiSelectionUserData_Invalid; IO.NavIdSelected = IO.RangeSrcReset = false; }
+};
+
+// Persistent storage for multi-select (as long as selection is alive)
+struct IMGUI_API ImGuiMultiSelectState
+{
+    ImGuiWindow*            Window;
+    ImGuiID                 ID;
+    int                     LastFrameActive;    // Last used frame-count, for GC.
+    int                     LastSelectionSize;  // Set by BeginMultiSelect() based on optional info provided by user. May be -1 if unknown.
+    ImS8                    RangeSelected;      // -1 (don't have) or true/false
+    ImS8                    NavIdSelected;      // -1 (don't have) or true/false
+    ImGuiSelectionUserData  RangeSrcItem;       //
+    ImGuiSelectionUserData  NavIdItem;          // SetNextItemSelectionUserData() value for NavId (if part of submitted items)
+
+    ImGuiMultiSelectState() { Window = NULL; ID = 0; LastFrameActive = LastSelectionSize = 0; RangeSelected = NavIdSelected = -1; RangeSrcItem = NavIdItem = ImGuiSelectionUserData_Invalid; }
+};

 //-----------------------------------------------------------------------------
 // [SECTION] Docking support
@ -2011,11 +2081,9 @@ struct ImGuiContext
    ImGuiKeyOwnerData       KeysOwnerData[ImGuiKey_NamedKey_COUNT];
    ImGuiKeyRoutingTable    KeysRoutingTable;
    ImU32                   ActiveIdUsingNavDirMask;            // Active widget will want to read those nav move requests (e.g. can activate a button and move away from it)
-    bool                    ActiveIdUsingAllKeyboardKeys;       // Active widget will want to read all keyboard keys inputs. (FIXME: This is a shortcut for not taking ownership of 100+ keys but perhaps best to not have the inconsistency)
+    bool                    ActiveIdUsingAllKeyboardKeys;       // Active widget will want to read all keyboard keys inputs. (this is a shortcut for not taking ownership of 100+ keys, frequently used by drag operations)
    ImGuiKeyChord           DebugBreakInShortcutRouting;        // Set to break in SetShortcutRouting()/Shortcut() calls.
-#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
-    ImU32                   ActiveIdUsingNavInputMask;          // If you used this. Since (IMGUI_VERSION_NUM >= 18804) : 'g.ActiveIdUsingNavInputMask |= (1 << ImGuiNavInput_Cancel);' becomes 'SetKeyOwner(ImGuiKey_Escape, g.ActiveId) and/or SetKeyOwner(ImGuiKey_NavGamepadCancel, g.ActiveId);'
-#endif
+    //ImU32                 ActiveIdUsingNavInputMask;          // [OBSOLETE] Since (IMGUI_VERSION_NUM >= 18804) : 'g.ActiveIdUsingNavInputMask |= (1 << ImGuiNavInput_Cancel);' becomes --> 'SetKeyOwner(ImGuiKey_Escape, g.ActiveId) and/or SetKeyOwner(ImGuiKey_NavGamepadCancel, g.ActiveId);'

    // Next window/item data
    ImGuiID                 CurrentFocusScopeId;                // Value for currently appending items == g.FocusScopeStack.back(). Not to be mistaken with g.NavFocusScopeId.
@ -2149,6 +2217,13 @@ struct ImGuiContext
    ImVector<ImGuiPtrOrIndex>       CurrentTabBarStack;
    ImVector<ImGuiShrinkWidthItem>  ShrinkWidthBuffer;

+    // Multi-Select state
+    ImGuiBoxSelectState             BoxSelectState;
+    ImGuiMultiSelectTempData*       CurrentMultiSelect;
+    int                             MultiSelectTempDataStacked; // Temporary multi-select data size (because we leave previous instances undestructed, we generally don't use MultiSelectTempData.Size)
+    ImVector<ImGuiMultiSelectTempData> MultiSelectTempData;
+    ImPool<ImGuiMultiSelectState>   MultiSelectStorage;
+
    // Hover Delay system
    ImGuiID                 HoverItemDelayId;
    ImGuiID                 HoverItemDelayIdPreviousFrame;
@ -2320,9 +2395,6 @@ struct ImGuiContext

        ActiveIdUsingNavDirMask = 0x00;
        ActiveIdUsingAllKeyboardKeys = false;
-#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
-        ActiveIdUsingNavInputMask = 0x00;
-#endif

        CurrentFocusScopeId = 0;
        CurrentItemFlags = ImGuiItemFlags_None;
@ -2389,6 +2461,8 @@ struct ImGuiContext
        CurrentTable = NULL;
        TablesTempDataStacked = 0;
        CurrentTabBar = NULL;
+        CurrentMultiSelect = NULL;
+        MultiSelectTempDataStacked = 0;

        HoverItemDelayId = HoverItemDelayIdPreviousFrame = HoverItemUnlockedStationaryId = HoverWindowUnlockedStationaryId = 0;
        HoverItemDelayTimer = HoverItemDelayClearTimer = 0.0f;
@ -3043,6 +3117,7 @@ namespace ImGui
    inline ImRect           WindowRectAbsToRel(ImGuiWindow* window, const ImRect& r) { ImVec2 off = window->DC.CursorStartPos; return ImRect(r.Min.x - off.x, r.Min.y - off.y, r.Max.x - off.x, r.Max.y - off.y); }
    inline ImRect           WindowRectRelToAbs(ImGuiWindow* window, const ImRect& r) { ImVec2 off = window->DC.CursorStartPos; return ImRect(r.Min.x + off.x, r.Min.y + off.y, r.Max.x + off.x, r.Max.y + off.y); }
    inline ImVec2           WindowPosRelToAbs(ImGuiWindow* window, const ImVec2& p)  { ImVec2 off = window->DC.CursorStartPos; return ImVec2(p.x + off.x, p.y + off.y); }
+    inline ImVec2           WindowPosAbsToRel(ImGuiWindow* window, const ImVec2& p)  { ImVec2 off = window->DC.CursorStartPos; return ImVec2(p.x - off.x, p.y - off.y); }

    // Windows: Display Order and Focus Order
    IMGUI_API void          FocusWindow(ImGuiWindow* window, ImGuiFocusRequestFlags flags = 0);
@ -3118,7 +3193,7 @@ namespace ImGui
 //#endif

    // Basic Accessors
-    inline ImGuiItemStatusFlags GetItemStatusFlags(){ ImGuiContext& g = *GImGui; return g.LastItemData.StatusFlags; }
+    inline ImGuiItemStatusFlags GetItemStatusFlags() { ImGuiContext& g = *GImGui; return g.LastItemData.StatusFlags; }
    inline ImGuiItemFlags   GetItemFlags()  { ImGuiContext& g = *GImGui; return g.LastItemData.InFlags; }
    inline ImGuiID          GetActiveID()   { ImGuiContext& g = *GImGui; return g.ActiveId; }
    inline ImGuiID          GetFocusID()    { ImGuiContext& g = *GImGui; return g.NavId; }
@ -3144,8 +3219,6 @@ namespace ImGui
    IMGUI_API ImVec2        CalcItemSize(ImVec2 size, float default_w, float default_h);
    IMGUI_API float         CalcWrapWidthForPos(const ImVec2& pos, float wrap_pos_x);
    IMGUI_API void          PushMultiItemsWidths(int components, float width_full);
-    IMGUI_API bool          IsItemToggledSelection();                                   // Was the last item selection toggled? (after Selectable(), TreeNode() etc. We only returns toggle _event_ in order to handle clipping correctly)
-    IMGUI_API ImVec2        GetContentRegionMaxAbs();
    IMGUI_API void          ShrinkWidths(ImGuiShrinkWidthItem* items, int count, float width_excess);

    // Parameter stacks (shared)
@ -3262,7 +3335,7 @@ namespace ImGui
    IMGUI_API ImGuiID       GetKeyOwner(ImGuiKey key);
    IMGUI_API void          SetKeyOwner(ImGuiKey key, ImGuiID owner_id, ImGuiInputFlags flags = 0);
    IMGUI_API void          SetKeyOwnersForKeyChord(ImGuiKeyChord key, ImGuiID owner_id, ImGuiInputFlags flags = 0);
-    IMGUI_API void          SetItemKeyOwner(ImGuiKey key, ImGuiInputFlags flags = 0);   // Set key owner to last item if it is hovered or active. Equivalent to 'if (IsItemHovered() || IsItemActive()) { SetKeyOwner(key, GetItemID());'.
+    IMGUI_API void          SetItemKeyOwner(ImGuiKey key, ImGuiInputFlags flags);       // Set key owner to last item if it is hovered or active. Equivalent to 'if (IsItemHovered() || IsItemActive()) { SetKeyOwner(key, GetItemID());'.
    IMGUI_API bool          TestKeyOwner(ImGuiKey key, ImGuiID owner_id);               // Test that key is either not owned, either owned by 'owner_id'
    inline ImGuiKeyOwnerData* GetKeyOwnerData(ImGuiContext* ctx, ImGuiKey key)          { if (key & ImGuiMod_Mask_) key = ConvertSingleModFlagToKey(key); IM_ASSERT(IsNamedKey(key)); return &ctx->KeysOwnerData[key - ImGuiKey_NamedKey_BEGIN]; }

@ -3325,6 +3398,18 @@ namespace ImGui
    IMGUI_API int           TypingSelectFindNextSingleCharMatch(ImGuiTypingSelectRequest* req, int items_count, const char* (*get_item_name_func)(void*, int), void* user_data, int nav_item_idx);
    IMGUI_API int           TypingSelectFindBestLeadingMatch(ImGuiTypingSelectRequest* req, int items_count, const char* (*get_item_name_func)(void*, int), void* user_data);

+    // Box-Select API
+    IMGUI_API bool          BeginBoxSelect(const ImRect& scope_rect, ImGuiWindow* window, ImGuiID box_select_id, ImGuiMultiSelectFlags ms_flags);
+    IMGUI_API void          EndBoxSelect(const ImRect& scope_rect, ImGuiMultiSelectFlags ms_flags);
+
+    // Multi-Select API
+    IMGUI_API void          MultiSelectItemHeader(ImGuiID id, bool* p_selected, ImGuiButtonFlags* p_button_flags);
+    IMGUI_API void          MultiSelectItemFooter(ImGuiID id, bool* p_selected, bool* p_pressed);
+    IMGUI_API void          MultiSelectAddSetAll(ImGuiMultiSelectTempData* ms, bool selected);
+    IMGUI_API void          MultiSelectAddSetRange(ImGuiMultiSelectTempData* ms, bool selected, int range_dir, ImGuiSelectionUserData first_item, ImGuiSelectionUserData last_item);
+    inline ImGuiBoxSelectState*     GetBoxSelectState(ImGuiID id)   { ImGuiContext& g = *GImGui; return (id != 0 && g.BoxSelectState.ID == id && g.BoxSelectState.IsActive) ? &g.BoxSelectState : NULL; }
+    inline ImGuiMultiSelectState*   GetMultiSelectState(ImGuiID id) { ImGuiContext& g = *GImGui; return g.MultiSelectStorage.GetByKey(id); }
+
    // Internal Columns API (this is not exposed because we will encourage transitioning to the Tables API)
    IMGUI_API void          SetWindowClipRectBeforeSetChannel(ImGuiWindow* window, const ImRect& clip_rect);
    IMGUI_API void          BeginColumns(const char* str_id, int count, ImGuiOldColumnFlags flags = 0); // setup number of columns. use an identifier to distinguish multiple column sets. close with EndColumns().
@ -3461,10 +3546,9 @@ namespace ImGui
    IMGUI_API bool          DragBehavior(ImGuiID id, ImGuiDataType data_type, void* p_v, float v_speed, const void* p_min, const void* p_max, const char* format, ImGuiSliderFlags flags);
    IMGUI_API bool          SliderBehavior(const ImRect& bb, ImGuiID id, ImGuiDataType data_type, void* p_v, const void* p_min, const void* p_max, const char* format, ImGuiSliderFlags flags, ImRect* out_grab_bb);
    IMGUI_API bool          SplitterBehavior(const ImRect& bb, ImGuiID id, ImGuiAxis axis, float* size1, float* size2, float min_size1, float min_size2, float hover_extend = 0.0f, float hover_visibility_delay = 0.0f, ImU32 bg_col = 0);
-    IMGUI_API void          SetNextItemSelectionUserData(ImGuiSelectionUserData selection_user_data);

    // Widgets: Tree Nodes
-    IMGUI_API bool          TreeNodeBehavior(ImGuiID id, ImGuiID storage_id, ImGuiTreeNodeFlags flags, const char* label, const char* label_end = NULL);
+    IMGUI_API bool          TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* label, const char* label_end = NULL);
    IMGUI_API void          TreePushOverrideID(ImGuiID id);
    IMGUI_API bool          TreeNodeGetOpen(ImGuiID storage_id);
    IMGUI_API void          TreeNodeSetOpen(ImGuiID storage_id, bool open);
@ -3543,6 +3627,7 @@ namespace ImGui
    IMGUI_API void          DebugNodeTableSettings(ImGuiTableSettings* settings);
    IMGUI_API void          DebugNodeInputTextState(ImGuiInputTextState* state);
    IMGUI_API void          DebugNodeTypingSelectState(ImGuiTypingSelectState* state);
+    IMGUI_API void          DebugNodeMultiSelectState(ImGuiMultiSelectState* state);
    IMGUI_API void          DebugNodeWindow(ImGuiWindow* window, const char* label);
    IMGUI_API void          DebugNodeWindowSettings(ImGuiWindowSettings* settings);
    IMGUI_API void          DebugNodeWindowsList(ImVector<ImGuiWindow*>* windows, const char* label);
--- a/external/imgui/imgui/imgui_tables.cpp
+++ b/external/imgui/imgui/imgui_tables.cpp
@ -1,4 +1,4 @@
-// dear imgui, v1.91.0 WIP
+// dear imgui, v1.91.0
 // (tables and columns code)

 /*
@ -1996,34 +1996,37 @@ void ImGui::TableEndRow(ImGuiTable* table)
    // We need to do that in TableEndRow() instead of TableBeginRow() so the list clipper can mark end of row and
    // get the new cursor position.
    if (unfreeze_rows_request)
+    {
        for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
            table->Columns[column_n].NavLayerCurrent = ImGuiNavLayer_Main;
-    if (unfreeze_rows_actual)
-    {
-        IM_ASSERT(table->IsUnfrozenRows == false);
        const float y0 = ImMax(table->RowPosY2 + 1, window->InnerClipRect.Min.y);
-        table->IsUnfrozenRows = true;
        table_instance->LastFrozenHeight = y0 - table->OuterRect.Min.y;

-        // BgClipRect starts as table->InnerClipRect, reduce it now and make BgClipRectForDrawCmd == BgClipRect
-        table->BgClipRect.Min.y = table->Bg2ClipRectForDrawCmd.Min.y = ImMin(y0, window->InnerClipRect.Max.y);
-        table->BgClipRect.Max.y = table->Bg2ClipRectForDrawCmd.Max.y = window->InnerClipRect.Max.y;
-        table->Bg2DrawChannelCurrent = table->Bg2DrawChannelUnfrozen;
-        IM_ASSERT(table->Bg2ClipRectForDrawCmd.Min.y <= table->Bg2ClipRectForDrawCmd.Max.y);
-
-        float row_height = table->RowPosY2 - table->RowPosY1;
-        table->RowPosY2 = window->DC.CursorPos.y = table->WorkRect.Min.y + table->RowPosY2 - table->OuterRect.Min.y;
-        table->RowPosY1 = table->RowPosY2 - row_height;
-        for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
+        if (unfreeze_rows_actual)
        {
-            ImGuiTableColumn* column = &table->Columns[column_n];
-            column->DrawChannelCurrent = column->DrawChannelUnfrozen;
-            column->ClipRect.Min.y = table->Bg2ClipRectForDrawCmd.Min.y;
-        }
+            IM_ASSERT(table->IsUnfrozenRows == false);
+            table->IsUnfrozenRows = true;

-        // Update cliprect ahead of TableBeginCell() so clipper can access to new ClipRect->Min.y
-        SetWindowClipRectBeforeSetChannel(window, table->Columns[0].ClipRect);
-        table->DrawSplitter->SetCurrentChannel(window->DrawList, table->Columns[0].DrawChannelCurrent);
+            // BgClipRect starts as table->InnerClipRect, reduce it now and make BgClipRectForDrawCmd == BgClipRect
+            table->BgClipRect.Min.y = table->Bg2ClipRectForDrawCmd.Min.y = ImMin(y0, window->InnerClipRect.Max.y);
+            table->BgClipRect.Max.y = table->Bg2ClipRectForDrawCmd.Max.y = window->InnerClipRect.Max.y;
+            table->Bg2DrawChannelCurrent = table->Bg2DrawChannelUnfrozen;
+            IM_ASSERT(table->Bg2ClipRectForDrawCmd.Min.y <= table->Bg2ClipRectForDrawCmd.Max.y);
+
+            float row_height = table->RowPosY2 - table->RowPosY1;
+            table->RowPosY2 = window->DC.CursorPos.y = table->WorkRect.Min.y + table->RowPosY2 - table->OuterRect.Min.y;
+            table->RowPosY1 = table->RowPosY2 - row_height;
+            for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
+            {
+                ImGuiTableColumn* column = &table->Columns[column_n];
+                column->DrawChannelCurrent = column->DrawChannelUnfrozen;
+                column->ClipRect.Min.y = table->Bg2ClipRectForDrawCmd.Min.y;
+            }
+
+            // Update cliprect ahead of TableBeginCell() so clipper can access to new ClipRect->Min.y
+            SetWindowClipRectBeforeSetChannel(window, table->Columns[0].ClipRect);
+            table->DrawSplitter->SetCurrentChannel(window->DrawList, table->Columns[0].DrawChannelCurrent);
+        }
    }

    if (!(table->RowFlags & ImGuiTableRowFlags_Headers))
--- a/external/imgui/imgui/imgui_widgets.cpp
+++ b/external/imgui/imgui/imgui_widgets.cpp
--- a/src/chat_gui4.cpp
+++ b/src/chat_gui4.cpp
@ -1195,6 +1195,8 @@ void ChatGui4::renderMessageBodyFile(Message3Registry& reg, const Message3 e) {
 					}
 					ImGui::EndMenu();
 				}
+			} else {
+				ImGui::TextDisabled("forward");
 			}

 			ImGui::Separator();