Updated ImGui.

3rdparty/ocornut-imgui/imgui.cpp

@@ -214,6 +214,11 @@
  Here is a change-log of API breaking changes, if you are using one of the functions listed, expect to have to fix some code.
  Also read releases logs https://github.com/ocornut/imgui/releases for more details.
 
+ - 2017/11/18 (1.53) - Style, Begin: removed ImGuiWindowFlags_ShowBorders window flag. Borders are now fully set up in the ImGuiStyle structure (see e.g. style.FrameBorderSize, style.WindowBorderSize). Use ImGui::ShowStyleEditor() to look them up.
+                       Please note that the style system will keep evolving (hopefully stabilizing in Q1 2018), and so custom styles will probably subtly break over time. It is recommended you use the StyleColorsClassic(), StyleColorsDark(), StyleColorsLight() functions.
+ - 2017/11/18 (1.53) - Style: removed ImGuiCol_ComboBg in favor of combo boxes using ImGuiCol_PopupBg for consistency.
+ - 2017/11/18 (1.53) - Style: renamed ImGuiCol_ChildWindowBg to ImGuiCol_ChildBg.
+ - 2017/11/18 (1.53) - Style: renamed style.ChildWindowRounding to style.ChildRounding, ImGuiStyleVar_ChildWindowRounding to ImGuiStyleVar_ChildRounding.
  - 2017/11/02 (1.53) - marked IsRootWindowOrAnyChildHovered() as obsolete is favor of using IsWindowHovered(ImGuiHoveredFlags_FlattenChilds);
  - 2017/10/24 (1.52) - renamed IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCS/IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCS to IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCTIONS/IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS for consistency.
  - 2017/10/20 (1.52) - changed IsWindowHovered() default parameters behavior to return false if an item is active in another window (e.g. click-dragging item from another window to this window). You can use the newly introduced IsWindowHovered() flags to requests this specific behavior if you need it.
@@ -705,12 +710,17 @@ ImGuiStyle::ImGuiStyle()
 {
     Alpha                   = 1.0f;             // Global alpha applies to everything in ImGui
     WindowPadding           = ImVec2(8,8);      // Padding within a window
-    WindowMinSize           = ImVec2(32,32);    // Minimum window size
     WindowRounding          = 9.0f;             // Radius of window corners rounding. Set to 0.0f to have rectangular windows
+    WindowBorderSize        = 0.0f;             // Thickness of border around windows. Generally set to 0.0f or 1.0f. Other values not well tested.
+    WindowMinSize           = ImVec2(32,32);    // Minimum window size
     WindowTitleAlign        = ImVec2(0.0f,0.5f);// Alignment for title bar text
-    ChildWindowRounding     = 0.0f;             // Radius of child window corners rounding. Set to 0.0f to have rectangular child windows
+    ChildRounding           = 0.0f;             // Radius of child window corners rounding. Set to 0.0f to have rectangular child windows
+    ChildBorderSize         = 1.0f;             // Thickness of border around child windows. Generally set to 0.0f or 1.0f. Other values not well tested.
+    PopupRounding           = 0.0f;             // Radius of popup window corners rounding. Set to 0.0f to have rectangular child windows
+    PopupBorderSize         = 1.0f;             // Thickness of border around popup or tooltip windows. Generally set to 0.0f or 1.0f. Other values not well tested.
     FramePadding            = ImVec2(4,3);      // Padding within a framed rectangle (used by most widgets)
     FrameRounding           = 0.0f;             // Radius of frame corners rounding. Set to 0.0f to have rectangular frames (used by most widgets).
+    FrameBorderSize         = 0.0f;             // Thickness of border around frames. Generally set to 0.0f or 1.0f. Other values not well tested.
     ItemSpacing             = ImVec2(8,4);      // Horizontal and vertical spacing between widgets/lines
     ItemInnerSpacing        = ImVec2(4,4);      // Horizontal and vertical spacing between within elements of a composed widget (e.g. a slider and its label)
     TouchExtraPadding       = ImVec2(0,0);      // Expand reactive bounding box for touch-based system where touch position is not accurate enough. Unfortunately we don't sort widgets so priority on overlap will always be given to the first widget. So don't grow this too much!
@@ -731,26 +741,27 @@ ImGuiStyle::ImGuiStyle()
 }
 
 // To scale your entire UI (e.g. if you want your app to use High DPI or generally be DPI aware) you may use this helper function. Scaling the fonts is done separately and is up to you.
-// Tips: if you need to change your scale multiple times, prefer calling this on a freshly initialized ImGuiStyle structure rather than scaling multiple times (because floating point multiplications are lossy).
+// Important: This operation is lossy because we round all sizes to integer. If you need to change your scale multiples, call this over a freshly initialized ImGuiStyle structure rather than scaling multiple times.
 void ImGuiStyle::ScaleAllSizes(float scale_factor)
 {
-    WindowPadding *= scale_factor;
-    WindowMinSize *= scale_factor;
-    WindowRounding *= scale_factor;
-    ChildWindowRounding *= scale_factor;
-    FramePadding *= scale_factor;
-    FrameRounding *= scale_factor;
-    ItemSpacing *= scale_factor;
-    ItemInnerSpacing *= scale_factor;
-    TouchExtraPadding *= scale_factor;
-    IndentSpacing *= scale_factor;
-    ColumnsMinSpacing *= scale_factor;
-    ScrollbarSize *= scale_factor;
-    ScrollbarRounding *= scale_factor;
-    GrabMinSize *= scale_factor;
-    GrabRounding *= scale_factor;
-    DisplayWindowPadding *= scale_factor;
-    DisplaySafeAreaPadding *= scale_factor;
+    WindowPadding = ImFloor(WindowPadding * scale_factor);
+    WindowRounding = ImFloor(WindowRounding * scale_factor);
+    WindowMinSize = ImFloor(WindowMinSize * scale_factor);
+    ChildRounding = ImFloor(ChildRounding * scale_factor);
+    PopupRounding = ImFloor(PopupRounding * scale_factor);
+    FramePadding = ImFloor(FramePadding * scale_factor);
+    FrameRounding = ImFloor(FrameRounding * scale_factor);
+    ItemSpacing = ImFloor(ItemSpacing * scale_factor);
+    ItemInnerSpacing = ImFloor(ItemInnerSpacing * scale_factor);
+    TouchExtraPadding = ImFloor(TouchExtraPadding * scale_factor);
+    IndentSpacing = ImFloor(IndentSpacing * scale_factor);
+    ColumnsMinSpacing = ImFloor(ColumnsMinSpacing * scale_factor);
+    ScrollbarSize = ImFloor(ScrollbarSize * scale_factor);
+    ScrollbarRounding = ImFloor(ScrollbarRounding * scale_factor);
+    GrabMinSize = ImFloor(GrabMinSize * scale_factor);
+    GrabRounding = ImFloor(GrabRounding * scale_factor);
+    DisplayWindowPadding = ImFloor(DisplayWindowPadding * scale_factor);
+    DisplaySafeAreaPadding = ImFloor(DisplaySafeAreaPadding * scale_factor);
 }
 
 ImGuiIO::ImGuiIO()
@@ -1793,15 +1804,16 @@ ImGuiWindow::ImGuiWindow(const char* name)
     Size = SizeFull = ImVec2(0.0f, 0.0f);
     SizeContents = SizeContentsExplicit = ImVec2(0.0f, 0.0f);
     WindowPadding = ImVec2(0.0f, 0.0f);
+    WindowRounding = 0.0f;
+    WindowBorderSize = 0.0f;
     MoveId = GetID("#MOVE");
     Scroll = ImVec2(0.0f, 0.0f);
     ScrollTarget = ImVec2(FLT_MAX, FLT_MAX);
     ScrollTargetCenterRatio = ImVec2(0.5f, 0.5f);
     ScrollbarX = ScrollbarY = false;
     ScrollbarSizes = ImVec2(0.0f, 0.0f);
-    BorderSize = 0.0f;
     Active = WasActive = false;
-    Accessed = false;
+    WriteAccessed = false;
     Collapsed = false;
     SkipItems = false;
     Appearing = false;
@@ -2011,6 +2023,9 @@ bool ImGui::IsItemHovered(ImGuiHoveredFlags flags)
         return false;
     if (window->DC.ItemFlags & ImGuiItemFlags_Disabled)
         return false;
+    // Special handling for the 1st item after Begin() which represent the title bar. When the window is collapsed (SkipItems==true) that last item will never be overwritten.
+    if (window->DC.LastItemId == window->MoveId && window->WriteAccessed)
+        return false;
     return true;
 }
 
@@ -2201,12 +2216,14 @@ void ImGui::NewFrame()
     ImGuiContext& g = *GImGui;
 
     // Check user data
-    IM_ASSERT(g.IO.DeltaTime >= 0.0f);               // Need a positive DeltaTime (zero is tolerated but will cause some timing issues)
-    IM_ASSERT(g.IO.DisplaySize.x >= 0.0f && g.IO.DisplaySize.y >= 0.0f);
-    IM_ASSERT(g.IO.Fonts->Fonts.Size > 0);           // Font Atlas not created. Did you call io.Fonts->GetTexDataAsRGBA32 / GetTexDataAsAlpha8 ?
-    IM_ASSERT(g.IO.Fonts->Fonts[0]->IsLoaded());     // Font Atlas not created. Did you call io.Fonts->GetTexDataAsRGBA32 / GetTexDataAsAlpha8 ?
-    IM_ASSERT(g.Style.CurveTessellationTol > 0.0f);  // Invalid style setting
-    IM_ASSERT(g.Style.Alpha >= 0.0f && g.Style.Alpha <= 1.0f);  // Invalid style setting. Alpha cannot be negative (allows us to avoid a few clamps in color computations)
+    // (We pass an error message in the assert expression as a trick to get it visible to programmers who are not using a debugger, as most assert handlers display their argument)
+    IM_ASSERT(g.IO.DeltaTime >= 0.0f                                    && "Need a positive DeltaTime (zero is tolerated but will cause some timing issues)");
+    IM_ASSERT(g.IO.DisplaySize.x >= 0.0f && g.IO.DisplaySize.y >= 0.0f  && "Invalid DisplaySize value");
+    IM_ASSERT(g.IO.Fonts->Fonts.Size > 0                                && "Font Atlas not created. Did you call io.Fonts->GetTexDataAsRGBA32 / GetTexDataAsAlpha8 ?");
+    IM_ASSERT(g.IO.Fonts->Fonts[0]->IsLoaded()                          && "Font Atlas not created. Did you call io.Fonts->GetTexDataAsRGBA32 / GetTexDataAsAlpha8 ?");
+    IM_ASSERT(g.Style.CurveTessellationTol > 0.0f                       && "Invalid style setting");
+    IM_ASSERT(g.Style.Alpha >= 0.0f && g.Style.Alpha <= 1.0f            && "Invalid style setting. Alpha cannot be negative (allows us to avoid a few clamps in color computations)");
+    IM_ASSERT((g.FrameCount == 0 || g.FrameCountEnded == g.FrameCount)  && "Forgot to call Render() or EndFrame() at the end of the previous frame?");
 
     // Initialize on first frame
     if (!g.Initialized)
@@ -2412,7 +2429,7 @@ void ImGui::NewFrame()
         ImGuiWindow* window = g.Windows[i];
         window->WasActive = window->Active;
         window->Active = false;
-        window->Accessed = false;
+        window->WriteAccessed = false;
     }
 
     // Closing the focused window restore focus to the first active root window in descending z-order
@@ -2739,7 +2756,8 @@ void ImGui::EndFrame()
 {
     ImGuiContext& g = *GImGui;
     IM_ASSERT(g.Initialized);                       // Forgot to call ImGui::NewFrame()
-    IM_ASSERT(g.FrameCountEnded != g.FrameCount);   // ImGui::EndFrame() called multiple times, or forgot to call ImGui::NewFrame() again
+    if (g.FrameCountEnded == g.FrameCount)          // Don't process EndFrame() multiple times.
+        return;
 
     // Notify OS when our Input Method Editor cursor has moved (e.g. CJK inputs using Microsoft IME)
     if (g.IO.ImeSetInputScreenPosFn && ImLengthSqr(g.OsImePosRequest - g.OsImePosSet) > 0.0001f)
@@ -2750,7 +2768,7 @@ void ImGui::EndFrame()
 
     // Hide implicit "Debug" window if it hasn't been used
     IM_ASSERT(g.CurrentWindowStack.Size == 1);    // Mismatched Begin()/End() calls
-    if (g.CurrentWindow && !g.CurrentWindow->Accessed)
+    if (g.CurrentWindow && !g.CurrentWindow->WriteAccessed)
         g.CurrentWindow->Active = false;
     ImGui::End();
 
@@ -3068,10 +3086,11 @@ void ImGui::RenderFrame(ImVec2 p_min, ImVec2 p_max, ImU32 fill_col, bool border,
     ImGuiContext& g = *GImGui;
     ImGuiWindow* window = g.CurrentWindow;
     window->DrawList->AddRectFilled(p_min, p_max, fill_col, rounding);
-    if (border && (window->Flags & ImGuiWindowFlags_ShowBorders))
+    const float border_size = g.Style.FrameBorderSize;
+    if (border && border_size > 0.0f)
     {
-        window->DrawList->AddRect(p_min+ImVec2(1,1), p_max+ImVec2(1,1), GetColorU32(ImGuiCol_BorderShadow), rounding);
-        window->DrawList->AddRect(p_min, p_max, GetColorU32(ImGuiCol_Border), rounding);
+        window->DrawList->AddRect(p_min+ImVec2(1,1), p_max+ImVec2(1,1), GetColorU32(ImGuiCol_BorderShadow), rounding, ImDrawCornerFlags_All, border_size);
+        window->DrawList->AddRect(p_min, p_max, GetColorU32(ImGuiCol_Border), rounding, ImDrawCornerFlags_All, border_size);
     }
 }
 
@@ -3079,10 +3098,11 @@ void ImGui::RenderFrameBorder(ImVec2 p_min, ImVec2 p_max, float rounding)
 {
     ImGuiContext& g = *GImGui;
     ImGuiWindow* window = g.CurrentWindow;
-    if (window->Flags & ImGuiWindowFlags_ShowBorders)
+    const float border_size = g.Style.FrameBorderSize;
+    if (border_size > 0.0f)
     {
-        window->DrawList->AddRect(p_min+ImVec2(1,1), p_max+ImVec2(1,1), GetColorU32(ImGuiCol_BorderShadow), rounding);
-        window->DrawList->AddRect(p_min, p_max, GetColorU32(ImGuiCol_Border), rounding);
+        window->DrawList->AddRect(p_min+ImVec2(1,1), p_max+ImVec2(1,1), GetColorU32(ImGuiCol_BorderShadow), rounding, ImDrawCornerFlags_All, border_size);
+        window->DrawList->AddRect(p_min, p_max, GetColorU32(ImGuiCol_Border), rounding, ImDrawCornerFlags_All, border_size);
     }
 }
 
@@ -3658,14 +3678,12 @@ static inline void ClearSetNextWindowData()
 bool ImGui::BeginPopupEx(ImGuiID id, ImGuiWindowFlags extra_flags)
 {
     ImGuiContext& g = *GImGui;
-    ImGuiWindow* window = g.CurrentWindow;
     if (!IsPopupOpen(id))
     {
         ClearSetNextWindowData(); // We behave like Begin() and need to consume those values
         return false;
     }
 
-    PushStyleVar(ImGuiStyleVar_WindowRounding, 0.0f);
     ImGuiWindowFlags flags = extra_flags|ImGuiWindowFlags_Popup|ImGuiWindowFlags_NoTitleBar|ImGuiWindowFlags_NoResize|ImGuiWindowFlags_NoSavedSettings;
 
     char name[20];
@@ -3675,9 +3693,7 @@ bool ImGui::BeginPopupEx(ImGuiID id, ImGuiWindowFlags extra_flags)
         ImFormatString(name, IM_ARRAYSIZE(name), "##popup_%08x", id); // Not recycling, so we can close/open during the same frame
 
     bool is_open = Begin(name, NULL, flags);
-    if (!(window->Flags & ImGuiWindowFlags_ShowBorders))
-        g.CurrentWindow->Flags &= ~ImGuiWindowFlags_ShowBorders;
-    if (!is_open) // NB: is_open can be 'false' when the popup is completely clipped (e.g. zero size display)
+    if (!is_open) // NB: Begin can return false when the popup is completely clipped (e.g. zero size display)
         EndPopup();
 
     return is_open;
@@ -3691,7 +3707,7 @@ bool ImGui::BeginPopup(const char* str_id)
         ClearSetNextWindowData(); // We behave like Begin() and need to consume those values
         return false;
     }
-    return BeginPopupEx(g.CurrentWindow->GetID(str_id), ImGuiWindowFlags_ShowBorders | ImGuiWindowFlags_AlwaysAutoResize);
+    return BeginPopupEx(g.CurrentWindow->GetID(str_id), ImGuiWindowFlags_AlwaysAutoResize);
 }
 
 bool ImGui::IsPopupOpen(ImGuiID id)
@@ -3740,8 +3756,6 @@ void ImGui::EndPopup()
     IM_ASSERT(window->Flags & ImGuiWindowFlags_Popup);  // Mismatched BeginPopup()/EndPopup() calls
     IM_ASSERT(GImGui->CurrentPopupStack.Size > 0);
     End();
-    if (!(window->Flags & ImGuiWindowFlags_Modal))
-        PopStyleVar();
 }
 
 bool ImGui::OpenPopupOnItemClick(const char* str_id, int mouse_button)
@@ -3767,7 +3781,7 @@ bool ImGui::BeginPopupContextItem(const char* str_id, int mouse_button)
     IM_ASSERT(id != 0);                                                  // However, you cannot pass a NULL str_id if the last item has no identifier (e.g. a Text() item)
     if (IsMouseClicked(mouse_button) && IsItemHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup))
         OpenPopupEx(id, true);
-    return BeginPopupEx(id, ImGuiWindowFlags_ShowBorders | ImGuiWindowFlags_AlwaysAutoResize);
+    return BeginPopupEx(id, ImGuiWindowFlags_AlwaysAutoResize);
 }
 
 bool ImGui::BeginPopupContextWindow(const char* str_id, int mouse_button, bool also_over_items)
@@ -3779,7 +3793,7 @@ bool ImGui::BeginPopupContextWindow(const char* str_id, int mouse_button, bool a
         if (IsWindowHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup))
             if (also_over_items || !IsAnyItemHovered())
                 OpenPopupEx(id, true);
-    return BeginPopupEx(id, ImGuiWindowFlags_ShowBorders | ImGuiWindowFlags_AlwaysAutoResize);
+    return BeginPopupEx(id, ImGuiWindowFlags_AlwaysAutoResize);
 }
 
 bool ImGui::BeginPopupContextVoid(const char* str_id, int mouse_button)
@@ -3789,11 +3803,12 @@ bool ImGui::BeginPopupContextVoid(const char* str_id, int mouse_button)
     ImGuiID id = GImGui->CurrentWindow->GetID(str_id);
     if (!IsAnyWindowHovered() && IsMouseClicked(mouse_button))
         OpenPopupEx(id, true);
-    return BeginPopupEx(id, ImGuiWindowFlags_ShowBorders | ImGuiWindowFlags_AlwaysAutoResize);
+    return BeginPopupEx(id, ImGuiWindowFlags_AlwaysAutoResize);
 }
 
 static bool BeginChildEx(const char* name, ImGuiID id, const ImVec2& size_arg, bool border, ImGuiWindowFlags extra_flags)
 {
+    ImGuiContext& g = *GImGui;
     ImGuiWindow* parent_window = ImGui::GetCurrentWindow();
     ImGuiWindowFlags flags = ImGuiWindowFlags_NoTitleBar|ImGuiWindowFlags_NoResize|ImGuiWindowFlags_NoSavedSettings|ImGuiWindowFlags_ChildWindow;
     flags |= (parent_window->Flags & ImGuiWindowFlags_NoMove);  // Inherit the NoMove flag
@@ -3805,8 +3820,10 @@ static bool BeginChildEx(const char* name, ImGuiID id, const ImVec2& size_arg, b
         size.x = ImMax(content_avail.x, 4.0f) - fabsf(size.x); // Arbitrary minimum zero-ish child size of 4.0f (0.0f causing too much issues)
     if (size.y <= 0.0f)
         size.y = ImMax(content_avail.y, 4.0f) - fabsf(size.y);
-    if (border)
-        flags |= ImGuiWindowFlags_ShowBorders;
+
+    const float backup_border_size = g.Style.ChildBorderSize;
+    if (!border)
+        g.Style.ChildBorderSize = 0.0f;
     flags |= extra_flags;
 
     char title[256];
@@ -3819,8 +3836,7 @@ static bool BeginChildEx(const char* name, ImGuiID id, const ImVec2& size_arg, b
     bool ret = ImGui::Begin(title, NULL, flags);
     ImGuiWindow* child_window = ImGui::GetCurrentWindow();
     child_window->AutoFitChildAxises = auto_fit_axises;
-    if (!(parent_window->Flags & ImGuiWindowFlags_ShowBorders))
-        child_window->Flags &= ~ImGuiWindowFlags_ShowBorders;
+    g.Style.ChildBorderSize = backup_border_size;
 
     return ret;
 }
@@ -3867,16 +3883,17 @@ bool ImGui::BeginChildFrame(ImGuiID id, const ImVec2& size, ImGuiWindowFlags ext
 {
     ImGuiContext& g = *GImGui;
     const ImGuiStyle& style = g.Style;
-    PushStyleColor(ImGuiCol_ChildWindowBg, style.Colors[ImGuiCol_FrameBg]);
-    PushStyleVar(ImGuiStyleVar_ChildWindowRounding, style.FrameRounding);
+    PushStyleColor(ImGuiCol_ChildBg, style.Colors[ImGuiCol_FrameBg]);
+    PushStyleVar(ImGuiStyleVar_ChildRounding, style.FrameRounding);
+    PushStyleVar(ImGuiStyleVar_ChildBorderSize, style.FrameBorderSize);
     PushStyleVar(ImGuiStyleVar_WindowPadding, style.FramePadding);
-    return BeginChild(id, size, (g.CurrentWindow->Flags & ImGuiWindowFlags_ShowBorders) ? true : false, ImGuiWindowFlags_NoMove | ImGuiWindowFlags_AlwaysUseWindowPadding | extra_flags);
+    return BeginChild(id, size, true, ImGuiWindowFlags_NoMove | ImGuiWindowFlags_AlwaysUseWindowPadding | extra_flags);
 }
 
 void ImGui::EndChildFrame()
 {
     EndChild();
-    PopStyleVar(2);
+    PopStyleVar(3);
     PopStyleColor();
 }
 
@@ -4071,12 +4088,10 @@ static ImVec2 CalcNextScrollFromScrollTargetAndClamp(ImGuiWindow* window)
 
 static ImGuiCol GetWindowBgColorIdxFromFlags(ImGuiWindowFlags flags)
 {
-    if (flags & ImGuiWindowFlags_ComboBox)
-        return ImGuiCol_ComboBg;
     if (flags & (ImGuiWindowFlags_Tooltip | ImGuiWindowFlags_Popup))
         return ImGuiCol_PopupBg;
     if (flags & ImGuiWindowFlags_ChildWindow)
-        return ImGuiCol_ChildWindowBg;
+        return ImGuiCol_ChildBg;
     return ImGuiCol_WindowBg;
 }
 
@@ -4260,10 +4275,15 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
             }
         }
 
-        // Lock window padding so that altering the ShowBorders flag for children doesn't have side-effects.
+        // Lock window rounding, border size and rounding so that altering the border sizes for children doesn't have side-effects.
+        window->WindowRounding = (flags & ImGuiWindowFlags_ChildWindow) ? style.ChildRounding : ((flags & ImGuiWindowFlags_Popup) && !(flags & ImGuiWindowFlags_Modal)) ? style.PopupRounding : style.WindowRounding;
+        window->WindowBorderSize = (flags & ImGuiWindowFlags_ChildWindow) ? style.ChildBorderSize : ((flags & ImGuiWindowFlags_Popup) && !(flags & ImGuiWindowFlags_Modal)) ? style.PopupBorderSize : style.WindowBorderSize;
         window->WindowPadding = style.WindowPadding;
-        if ((flags & ImGuiWindowFlags_ChildWindow) && !(flags & (ImGuiWindowFlags_AlwaysUseWindowPadding | ImGuiWindowFlags_ShowBorders | ImGuiWindowFlags_ComboBox | ImGuiWindowFlags_Popup)))
+        if ((flags & ImGuiWindowFlags_ChildWindow) && !(flags & (ImGuiWindowFlags_AlwaysUseWindowPadding | ImGuiWindowFlags_ComboBox | ImGuiWindowFlags_Popup)) && window->WindowBorderSize == 0.0f)
             window->WindowPadding = ImVec2(0.0f, (flags & ImGuiWindowFlags_MenuBar) ? style.WindowPadding.y : 0.0f);
+        const float window_rounding = window->WindowRounding;
+        const float window_border_size = window->WindowBorderSize;
+//        const ImVec2 window_padding = window->WindowPadding;
 
         // Calculate auto-fit size, handle automatic resize
         const ImVec2 size_auto_fit = CalcSizeAutoFit(window);
@@ -4312,7 +4332,6 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
             if (window->ScrollbarX && !window->ScrollbarY)
                 window->ScrollbarY = (window->SizeContents.y > window->SizeFull.y + style.ItemSpacing.y - style.ScrollbarSize) && !(flags & ImGuiWindowFlags_NoScrollbar);
             window->ScrollbarSizes = ImVec2(window->ScrollbarY ? style.ScrollbarSize : 0.0f, window->ScrollbarX ? style.ScrollbarSize : 0.0f);
-            window->BorderSize = (flags & ImGuiWindowFlags_ShowBorders) ? 1.0f : 0.0f;
         }
 
         // POSITION
@@ -4395,11 +4414,13 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
 
         // Draw window + handle manual resize
         ImRect title_bar_rect = window->TitleBarRect();
-        const float window_rounding = (flags & ImGuiWindowFlags_ChildWindow) ? style.ChildWindowRounding : style.WindowRounding;
         if (window->Collapsed)
         {
             // Title bar only
+            float backup_border_size = style.FrameBorderSize;
+            g.Style.FrameBorderSize = window->WindowBorderSize;
             RenderFrame(title_bar_rect.Min, title_bar_rect.Max, GetColorU32(ImGuiCol_TitleBgCollapsed), true, window_rounding);
+            g.Style.FrameBorderSize = backup_border_size;
         }
         else
         {
@@ -4442,20 +4463,20 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
 
             // Window background, Default Alpha
             ImU32 bg_col = GetColorU32(GetWindowBgColorIdxFromFlags(flags));
-            window->DrawList->AddRectFilled(window->Pos+ImVec2(0,window->TitleBarHeight()), window->Pos+window->Size, bg_col, window_rounding, (flags & ImGuiWindowFlags_NoTitleBar) ? ImGuiCorner_All : ImGuiCorner_BotLeft|ImGuiCorner_BotRight);
+            window->DrawList->AddRectFilled(window->Pos+ImVec2(0,window->TitleBarHeight()), window->Pos+window->Size, bg_col, window_rounding, (flags & ImGuiWindowFlags_NoTitleBar) ? ImDrawCornerFlags_All : ImDrawCornerFlags_Bot);
 
             // Title bar
             const bool is_focused = g.NavWindow && window->RootNonPopupWindow == g.NavWindow->RootNonPopupWindow;
             if (!(flags & ImGuiWindowFlags_NoTitleBar))
-                window->DrawList->AddRectFilled(title_bar_rect.GetTL(), title_bar_rect.GetBR(), GetColorU32(is_focused ? ImGuiCol_TitleBgActive : ImGuiCol_TitleBg), window_rounding, ImGuiCorner_TopLeft|ImGuiCorner_TopRight);
+                window->DrawList->AddRectFilled(title_bar_rect.GetTL(), title_bar_rect.GetBR(), GetColorU32(is_focused ? ImGuiCol_TitleBgActive : ImGuiCol_TitleBg), window_rounding, ImDrawCornerFlags_Top);
 
             // Menu bar
             if (flags & ImGuiWindowFlags_MenuBar)
             {
                 ImRect menu_bar_rect = window->MenuBarRect();
-                if (flags & ImGuiWindowFlags_ShowBorders)
-                    window->DrawList->AddLine(menu_bar_rect.GetBL(), menu_bar_rect.GetBR(), GetColorU32(ImGuiCol_Border));
-                window->DrawList->AddRectFilled(menu_bar_rect.GetTL(), menu_bar_rect.GetBR(), GetColorU32(ImGuiCol_MenuBarBg), (flags & ImGuiWindowFlags_NoTitleBar) ? window_rounding : 0.0f, ImGuiCorner_TopLeft|ImGuiCorner_TopRight);
+                window->DrawList->AddRectFilled(menu_bar_rect.GetTL(), menu_bar_rect.GetBR(), GetColorU32(ImGuiCol_MenuBarBg), (flags & ImGuiWindowFlags_NoTitleBar) ? window_rounding : 0.0f, ImDrawCornerFlags_Top);
+                if (style.FrameBorderSize > 0.0f)
+                    window->DrawList->AddLine(menu_bar_rect.GetBL(), menu_bar_rect.GetBR(), GetColorU32(ImGuiCol_Border), style.FrameBorderSize);
             }
 
             // Scrollbars
@@ -4469,20 +4490,17 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
             if (!(flags & ImGuiWindowFlags_NoResize))
             {
                 const ImVec2 br = window->Rect().GetBR();
-                window->DrawList->PathLineTo(br + ImVec2(-resize_corner_size, -window->BorderSize));
-                window->DrawList->PathLineTo(br + ImVec2(-window->BorderSize, -resize_corner_size));
-                window->DrawList->PathArcToFast(ImVec2(br.x - window_rounding - window->BorderSize, br.y - window_rounding - window->BorderSize), window_rounding, 0, 3);
+                window->DrawList->PathLineTo(br + ImVec2(-resize_corner_size, -window_border_size));
+                window->DrawList->PathLineTo(br + ImVec2(-window_border_size, -resize_corner_size));
+                window->DrawList->PathArcToFast(ImVec2(br.x - window_rounding - window_border_size, br.y - window_rounding - window_border_size), window_rounding, 0, 3);
                 window->DrawList->PathFillConvex(resize_col);
             }
 
             // Borders
-            if (flags & ImGuiWindowFlags_ShowBorders)
-            {
-                window->DrawList->AddRect(window->Pos+ImVec2(1,1), window->Pos+window->Size+ImVec2(1,1), GetColorU32(ImGuiCol_BorderShadow), window_rounding);
-                window->DrawList->AddRect(window->Pos, window->Pos+window->Size, GetColorU32(ImGuiCol_Border), window_rounding);
-                if (!(flags & ImGuiWindowFlags_NoTitleBar))
-                    window->DrawList->AddLine(title_bar_rect.GetBL()+ImVec2(1,0), title_bar_rect.GetBR()-ImVec2(1,0), GetColorU32(ImGuiCol_Border));
-            }
+            if (window_border_size > 0.0f)
+                window->DrawList->AddRect(window->Pos, window->Pos+window->Size, GetColorU32(ImGuiCol_Border), window_rounding, ImDrawCornerFlags_All, window_border_size);
+            if (style.FrameBorderSize > 0 && !(flags & ImGuiWindowFlags_NoTitleBar))
+                window->DrawList->AddLine(title_bar_rect.GetBL()+ImVec2(1,-1), title_bar_rect.GetBR()+ImVec2(-1,-1), GetColorU32(ImGuiCol_Border), style.FrameBorderSize);
         }
 
         // Update ContentsRegionMax. All the variable it depends on are set above in this function.
@@ -4602,7 +4620,7 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
 
     // Inner clipping rectangle
     // Force round operator last to ensure that e.g. (int)(max.x-min.x) in user's render code produce correct result.
-    const float border_size = window->BorderSize;
+    const float border_size = window->WindowBorderSize;
     ImRect clip_rect;
     clip_rect.Min.x = ImFloor(0.5f + window->InnerRect.Min.x + ImMax(border_size, ImFloor(window->WindowPadding.x*0.5f)));
     clip_rect.Min.y = ImFloor(0.5f + window->InnerRect.Min.y + border_size);
@@ -4612,7 +4630,7 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
 
     // Clear 'accessed' flag last thing (After PushClipRect which will set the flag. We want the flag to stay false when the default "Debug" window is unused)
     if (first_begin_of_the_frame)
-        window->Accessed = false;
+        window->WriteAccessed = false;
 
     window->BeginCount++;
     g.SetNextWindowSizeConstraint = false;
@@ -4706,7 +4724,7 @@ void ImGui::Scrollbar(ImGuiLayoutType direction)
     bool other_scrollbar = (horizontal ? window->ScrollbarY : window->ScrollbarX);
     float other_scrollbar_size_w = other_scrollbar ? style.ScrollbarSize : 0.0f;
     const ImRect window_rect = window->Rect();
-    const float border_size = window->BorderSize;
+    const float border_size = window->WindowBorderSize;
     ImRect bb = horizontal
         ? ImRect(window->Pos.x + border_size, window_rect.Max.y - style.ScrollbarSize, window_rect.Max.x - other_scrollbar_size_w - border_size, window_rect.Max.y - border_size)
         : ImRect(window_rect.Max.x - style.ScrollbarSize, window->Pos.y + border_size, window_rect.Max.x - border_size, window_rect.Max.y - other_scrollbar_size_w - border_size);
@@ -4715,13 +4733,12 @@ void ImGui::Scrollbar(ImGuiLayoutType direction)
     if (bb.GetWidth() <= 0.0f || bb.GetHeight() <= 0.0f)
         return;
 
-    float window_rounding = (window->Flags & ImGuiWindowFlags_ChildWindow) ? style.ChildWindowRounding : style.WindowRounding;
     int window_rounding_corners;
     if (horizontal)
-        window_rounding_corners = ImGuiCorner_BotLeft | (other_scrollbar ? 0 : ImGuiCorner_BotRight);
+        window_rounding_corners = ImDrawCornerFlags_BotLeft | (other_scrollbar ? 0 : ImDrawCornerFlags_BotRight);
     else
-        window_rounding_corners = (((window->Flags & ImGuiWindowFlags_NoTitleBar) && !(window->Flags & ImGuiWindowFlags_MenuBar)) ? ImGuiCorner_TopRight : 0) | (other_scrollbar ? 0 : ImGuiCorner_BotRight);
-    window->DrawList->AddRectFilled(bb.Min, bb.Max, GetColorU32(ImGuiCol_ScrollbarBg), window_rounding, window_rounding_corners);
+        window_rounding_corners = (((window->Flags & ImGuiWindowFlags_NoTitleBar) && !(window->Flags & ImGuiWindowFlags_MenuBar)) ? ImDrawCornerFlags_TopRight : 0) | (other_scrollbar ? 0 : ImDrawCornerFlags_BotRight);
+    window->DrawList->AddRectFilled(bb.Min, bb.Max, GetColorU32(ImGuiCol_ScrollbarBg), window->WindowRounding, window_rounding_corners);
     bb.Expand(ImVec2(-ImClamp((float)(int)((bb.Max.x - bb.Min.x - 2.0f) * 0.5f), 0.0f, 3.0f), -ImClamp((float)(int)((bb.Max.y - bb.Min.y - 2.0f) * 0.5f), 0.0f, 3.0f)));
 
     // V denote the main, longer axis of the scrollbar (= height for a vertical scrollbar)
@@ -5037,10 +5054,15 @@ static const ImGuiStyleVarInfo GStyleVarInfo[ImGuiStyleVar_Count_] =
     { ImGuiDataType_Float,  (ImU32)IM_OFFSETOF(ImGuiStyle, Alpha) },                // ImGuiStyleVar_Alpha
     { ImGuiDataType_Float2, (ImU32)IM_OFFSETOF(ImGuiStyle, WindowPadding) },        // ImGuiStyleVar_WindowPadding
     { ImGuiDataType_Float,  (ImU32)IM_OFFSETOF(ImGuiStyle, WindowRounding) },       // ImGuiStyleVar_WindowRounding
+    { ImGuiDataType_Float,  (ImU32)IM_OFFSETOF(ImGuiStyle, WindowBorderSize) },     // ImGuiStyleVar_WindowBorderSize
     { ImGuiDataType_Float2, (ImU32)IM_OFFSETOF(ImGuiStyle, WindowMinSize) },        // ImGuiStyleVar_WindowMinSize
-    { ImGuiDataType_Float,  (ImU32)IM_OFFSETOF(ImGuiStyle, ChildWindowRounding) },  // ImGuiStyleVar_ChildWindowRounding
+    { ImGuiDataType_Float,  (ImU32)IM_OFFSETOF(ImGuiStyle, ChildRounding) },        // ImGuiStyleVar_ChildRounding
+    { ImGuiDataType_Float,  (ImU32)IM_OFFSETOF(ImGuiStyle, ChildBorderSize) },      // ImGuiStyleVar_ChildBorderSize
+    { ImGuiDataType_Float,  (ImU32)IM_OFFSETOF(ImGuiStyle, PopupRounding) },        // ImGuiStyleVar_PopupRounding
+    { ImGuiDataType_Float,  (ImU32)IM_OFFSETOF(ImGuiStyle, PopupBorderSize) },      // ImGuiStyleVar_PopupBorderSize
     { ImGuiDataType_Float2, (ImU32)IM_OFFSETOF(ImGuiStyle, FramePadding) },         // ImGuiStyleVar_FramePadding
     { ImGuiDataType_Float,  (ImU32)IM_OFFSETOF(ImGuiStyle, FrameRounding) },        // ImGuiStyleVar_FrameRounding
+    { ImGuiDataType_Float,  (ImU32)IM_OFFSETOF(ImGuiStyle, FrameBorderSize) },      // ImGuiStyleVar_FrameBorderSize
     { ImGuiDataType_Float2, (ImU32)IM_OFFSETOF(ImGuiStyle, ItemSpacing) },          // ImGuiStyleVar_ItemSpacing
     { ImGuiDataType_Float2, (ImU32)IM_OFFSETOF(ImGuiStyle, ItemInnerSpacing) },     // ImGuiStyleVar_ItemInnerSpacing
     { ImGuiDataType_Float,  (ImU32)IM_OFFSETOF(ImGuiStyle, IndentSpacing) },        // ImGuiStyleVar_IndentSpacing
@@ -5106,7 +5128,7 @@ const char* ImGui::GetStyleColorName(ImGuiCol idx)
     case ImGuiCol_Text: return "Text";
     case ImGuiCol_TextDisabled: return "TextDisabled";
     case ImGuiCol_WindowBg: return "WindowBg";
-    case ImGuiCol_ChildWindowBg: return "ChildWindowBg";
+    case ImGuiCol_ChildBg: return "ChildBg";
     case ImGuiCol_PopupBg: return "PopupBg";
     case ImGuiCol_Border: return "Border";
     case ImGuiCol_BorderShadow: return "BorderShadow";
@@ -5121,7 +5143,6 @@ const char* ImGui::GetStyleColorName(ImGuiCol idx)
     case ImGuiCol_ScrollbarGrab: return "ScrollbarGrab";
     case ImGuiCol_ScrollbarGrabHovered: return "ScrollbarGrabHovered";
     case ImGuiCol_ScrollbarGrabActive: return "ScrollbarGrabActive";
-    case ImGuiCol_ComboBg: return "ComboBg";
     case ImGuiCol_CheckMark: return "CheckMark";
     case ImGuiCol_SliderGrab: return "SliderGrab";
     case ImGuiCol_SliderGrabActive: return "SliderGrabActive";
@@ -7615,7 +7636,7 @@ void ImGui::ProgressBar(float fraction, const ImVec2& size_arg, const char* over
     // Render
     fraction = ImSaturate(fraction);
     RenderFrame(bb.Min, bb.Max, GetColorU32(ImGuiCol_FrameBg), true, style.FrameRounding);
-    bb.Expand(ImVec2(-window->BorderSize, -window->BorderSize));
+    bb.Expand(ImVec2(-style.FrameBorderSize, -style.FrameBorderSize));
     const ImVec2 fill_br = ImVec2(ImLerp(bb.Min.x, bb.Max.x, fraction), bb.Max.y);
     RenderRectFilledRangeH(window->DrawList, bb, GetColorU32(ImGuiCol_PlotHistogram), 0.0f, fraction, style.FrameRounding);
 
@@ -7738,10 +7759,10 @@ bool ImGui::RadioButton(const char* label, bool active)
         window->DrawList->AddCircleFilled(center, radius-pad, GetColorU32(ImGuiCol_CheckMark), 16);
     }
 
-    if (window->Flags & ImGuiWindowFlags_ShowBorders)
+    if (style.FrameBorderSize > 0.0f)
     {
-        window->DrawList->AddCircle(center+ImVec2(1,1), radius, GetColorU32(ImGuiCol_BorderShadow), 16);
-        window->DrawList->AddCircle(center, radius, GetColorU32(ImGuiCol_Border), 16);
+        window->DrawList->AddCircle(center+ImVec2(1,1), radius, GetColorU32(ImGuiCol_BorderShadow), 16, style.FrameBorderSize);
+        window->DrawList->AddCircle(center, radius, GetColorU32(ImGuiCol_Border), 16, style.FrameBorderSize);
     }
 
     if (g.LogEnabled)
@@ -8880,18 +8901,17 @@ bool ImGui::BeginCombo(const char* label, const char* preview_value, ImVec2 popu
         // Position our combo ABOVE because there's more space to fit! (FIXME: Handle in Begin() or use a shared helper. We have similar code in Begin() for popup placement)
         popup_y1 = ImClamp(frame_bb.Min.y - popup_size.y, style.DisplaySafeAreaPadding.y, frame_bb.Min.y);
         popup_y2 = frame_bb.Min.y;
-        SetNextWindowPos(ImVec2(frame_bb.Min.x, frame_bb.Min.y), ImGuiCond_Always, ImVec2(0.0f, 1.0f));
+        SetNextWindowPos(ImVec2(frame_bb.Min.x, frame_bb.Min.y + style.FrameBorderSize), ImGuiCond_Always, ImVec2(0.0f, 1.0f));
     }
     else
     {
         // Position our combo below
-        SetNextWindowPos(ImVec2(frame_bb.Min.x, frame_bb.Max.y), ImGuiCond_Always, ImVec2(0.0f, 0.0f));
+        SetNextWindowPos(ImVec2(frame_bb.Min.x, frame_bb.Max.y - style.FrameBorderSize), ImGuiCond_Always, ImVec2(0.0f, 0.0f));
     }
     SetNextWindowSize(ImVec2(popup_size.x, popup_y2 - popup_y1), ImGuiCond_Appearing);
     PushStyleVar(ImGuiStyleVar_WindowPadding, style.FramePadding);
 
-    const ImGuiWindowFlags flags = ImGuiWindowFlags_ComboBox | ((window->Flags & ImGuiWindowFlags_ShowBorders) ? ImGuiWindowFlags_ShowBorders : 0);
-    if (!BeginPopupEx(id, flags))
+    if (!BeginPopupEx(id, ImGuiWindowFlags_ComboBox))
     {
         IM_ASSERT(0);   // This should never happen as we tested for IsPopupOpen() above
         return false;
@@ -9224,7 +9244,7 @@ bool ImGui::BeginMenuBar()
     PushID("##menubar");
     ImRect rect = window->MenuBarRect();
     rect.Max.x = ImMax(rect.Min.x, rect.Max.x - g.Style.WindowRounding);
-    PushClipRect(ImVec2(ImFloor(rect.Min.x+0.5f), ImFloor(rect.Min.y + window->BorderSize + 0.5f)), ImVec2(ImFloor(rect.Max.x+0.5f), ImFloor(rect.Max.y+0.5f)), false);
+    PushClipRect(ImVec2(ImFloor(rect.Min.x+0.5f), ImFloor(rect.Min.y + window->WindowBorderSize + 0.5f)), ImVec2(ImFloor(rect.Max.x+0.5f), ImFloor(rect.Max.y+0.5f)), false);
     window->DC.CursorPos = ImVec2(rect.Min.x + window->DC.MenuBarOffsetX, rect.Min.y);// + g.Style.FramePadding.y);
     window->DC.LayoutType = ImGuiLayoutType_Horizontal;
     window->DC.MenuBarAppending = true;
@@ -9357,7 +9377,7 @@ bool ImGui::BeginMenu(const char* label, bool enabled)
     if (menu_is_open)
     {
         SetNextWindowPos(popup_pos, ImGuiCond_Always);
-        ImGuiWindowFlags flags = ImGuiWindowFlags_ShowBorders | ImGuiWindowFlags_AlwaysAutoResize | ((window->Flags & (ImGuiWindowFlags_Popup|ImGuiWindowFlags_ChildMenu)) ? ImGuiWindowFlags_ChildMenu|ImGuiWindowFlags_ChildWindow : ImGuiWindowFlags_ChildMenu);
+        ImGuiWindowFlags flags = ImGuiWindowFlags_AlwaysAutoResize | ((window->Flags & (ImGuiWindowFlags_Popup|ImGuiWindowFlags_ChildMenu)) ? ImGuiWindowFlags_ChildMenu|ImGuiWindowFlags_ChildWindow : ImGuiWindowFlags_ChildMenu);
         menu_is_open = BeginPopupEx(id, flags); // menu_is_open can be 'false' when the popup is completely clipped (e.g. zero size display)
     }
 
@@ -9426,8 +9446,8 @@ void ImGui::RenderColorRectWithAlphaCheckerboard(ImVec2 p_min, ImVec2 p_max, ImU
                 if (x2 <= x1)
                     continue;
                 int rounding_corners_flags_cell = 0;
-                if (y1 <= p_min.y) { if (x1 <= p_min.x) rounding_corners_flags_cell |= ImGuiCorner_TopLeft;    if (x2 >= p_max.x) rounding_corners_flags_cell |= ImGuiCorner_TopRight; }
-                if (y2 >= p_max.y) { if (x1 <= p_min.x) rounding_corners_flags_cell |= ImGuiCorner_BotLeft; if (x2 >= p_max.x) rounding_corners_flags_cell |= ImGuiCorner_BotRight; }
+                if (y1 <= p_min.y) { if (x1 <= p_min.x) rounding_corners_flags_cell |= ImDrawCornerFlags_TopLeft; if (x2 >= p_max.x) rounding_corners_flags_cell |= ImDrawCornerFlags_TopRight; }
+                if (y2 >= p_max.y) { if (x1 <= p_min.x) rounding_corners_flags_cell |= ImDrawCornerFlags_BotLeft; if (x2 >= p_max.x) rounding_corners_flags_cell |= ImDrawCornerFlags_BotRight; }
                 rounding_corners_flags_cell &= rounding_corners_flags;
                 window->DrawList->AddRectFilled(ImVec2(x1,y1), ImVec2(x2,y2), col_bg2, rounding_corners_flags_cell ? rounding : 0.0f, rounding_corners_flags_cell);
             }
@@ -9490,8 +9510,8 @@ bool ImGui::ColorButton(const char* desc_id, const ImVec4& col, ImGuiColorEditFl
     if ((flags & ImGuiColorEditFlags_AlphaPreviewHalf) && col.w < 1.0f)
     {
         float mid_x = (float)(int)((bb_inner.Min.x + bb_inner.Max.x) * 0.5f + 0.5f);
-        RenderColorRectWithAlphaCheckerboard(ImVec2(bb_inner.Min.x + grid_step, bb_inner.Min.y), bb_inner.Max, GetColorU32(col), grid_step, ImVec2(-grid_step + off, off), rounding, ImGuiCorner_TopRight|ImGuiCorner_BotRight);
-        window->DrawList->AddRectFilled(bb_inner.Min, ImVec2(mid_x, bb_inner.Max.y), GetColorU32(col_without_alpha), rounding, ImGuiCorner_TopLeft|ImGuiCorner_BotLeft);
+        RenderColorRectWithAlphaCheckerboard(ImVec2(bb_inner.Min.x + grid_step, bb_inner.Min.y), bb_inner.Max, GetColorU32(col), grid_step, ImVec2(-grid_step + off, off), rounding, ImDrawCornerFlags_TopRight| ImDrawCornerFlags_BotRight);
+        window->DrawList->AddRectFilled(bb_inner.Min, ImVec2(mid_x, bb_inner.Max.y), GetColorU32(col_without_alpha), rounding, ImDrawCornerFlags_TopLeft|ImDrawCornerFlags_BotLeft);
     }
     else
     {
@@ -9500,9 +9520,9 @@ bool ImGui::ColorButton(const char* desc_id, const ImVec4& col, ImGuiColorEditFl
         if (col_source.w < 1.0f)
             RenderColorRectWithAlphaCheckerboard(bb_inner.Min, bb_inner.Max, GetColorU32(col_source), grid_step, ImVec2(off, off), rounding);
         else
-            window->DrawList->AddRectFilled(bb_inner.Min, bb_inner.Max, GetColorU32(col_source), rounding, ~0);
+            window->DrawList->AddRectFilled(bb_inner.Min, bb_inner.Max, GetColorU32(col_source), rounding, ImDrawCornerFlags_All);
     }
-    if (window->Flags & ImGuiWindowFlags_ShowBorders)
+    if (g.Style.FrameBorderSize > 0.0f)
         RenderFrameBorder(bb.Min, bb.Max, rounding);
     else
         window->DrawList->AddRect(bb.Min, bb.Max, GetColorU32(ImGuiCol_FrameBg), rounding); // Color button are often in need of some sort of border
@@ -10026,14 +10046,15 @@ bool ImGui::ColorPicker4(const char* label, float col[4], ImGuiColorEditFlags fl
         {
             const float a0 = (n)     /6.0f * 2.0f * IM_PI - aeps;
             const float a1 = (n+1.0f)/6.0f * 2.0f * IM_PI + aeps;
-            int vert_start_idx = draw_list->_VtxCurrentIdx;
+            const int vert_start_idx = draw_list->VtxBuffer.Size;
             draw_list->PathArcTo(wheel_center, (wheel_r_inner + wheel_r_outer)*0.5f, a0, a1, segment_per_arc);
             draw_list->PathStroke(IM_COL32_WHITE, false, wheel_thickness);
+            const int vert_end_idx = draw_list->VtxBuffer.Size;
 
             // Paint colors over existing vertices
             ImVec2 gradient_p0(wheel_center.x + cosf(a0) * wheel_r_inner, wheel_center.y + sinf(a0) * wheel_r_inner);
             ImVec2 gradient_p1(wheel_center.x + cosf(a1) * wheel_r_inner, wheel_center.y + sinf(a1) * wheel_r_inner);
-            ShadeVertsLinearColorGradientKeepAlpha(draw_list->_VtxWritePtr - (draw_list->_VtxCurrentIdx - vert_start_idx), draw_list->_VtxWritePtr, gradient_p0, gradient_p1, hue_colors[n], hue_colors[n+1]);
+            ShadeVertsLinearColorGradientKeepAlpha(draw_list->VtxBuffer.Data + vert_start_idx, draw_list->VtxBuffer.Data + vert_end_idx, gradient_p0, gradient_p1, hue_colors[n], hue_colors[n+1]);
         }
 
         // Render Cursor + preview on Hue Wheel
@@ -10873,7 +10894,7 @@ void ImGui::ShowMetricsWindow(bool* p_open)
                 if (ImGui::IsItemHovered())
                     GImGui->OverlayDrawList.AddRect(window->Pos, window->Pos + window->Size, IM_COL32(255,255,0,255));
                 ImGui::BulletText("Scroll: (%.2f,%.2f)", window->Scroll.x, window->Scroll.y);
-                ImGui::BulletText("Active: %d, Accessed: %d", window->Active, window->Accessed);
+                ImGui::BulletText("Active: %d, WriteAccessed: %d", window->Active, window->WriteAccessed);
                 if (window->RootWindow != window) NodeWindow(window->RootWindow, "RootWindow");
                 if (window->DC.ChildWindows.Size > 0) NodeWindows(window->DC.ChildWindows, "ChildWindows");
                 ImGui::BulletText("Storage: %d bytes", window->StateStorage.Data.Size * (int)sizeof(ImGuiStorage::Pair));

3rdparty/ocornut-imgui/imgui.h

@@ -76,6 +76,7 @@ typedef int ImGuiStyleVar;          // enum: a variable identifier for styling
 typedef int ImGuiKey;               // enum: a key identifier (ImGui-side enum) // enum ImGuiKey_
 typedef int ImGuiMouseCursor;       // enum: a mouse cursor identifier          // enum ImGuiMouseCursor_
 typedef int ImGuiCond;              // enum: a condition for Set*()             // enum ImGuiCond_
+typedef int ImDrawCornerFlags;      // flags: corner flags for AddRect*() etc.  // enum ImDrawCornerFlags_
 typedef int ImGuiColorEditFlags;    // flags: color edit flags for Color*()     // enum ImGuiColorEditFlags_
 typedef int ImGuiWindowFlags;       // flags: window flags for Begin*()         // enum ImGuiWindowFlags_
 typedef int ImGuiColumnsFlags;      // flags: for *Columns*()                   // enum ImGuiColumnsFlags_
@@ -123,8 +124,9 @@ namespace ImGui
     IMGUI_API ImGuiIO&      GetIO();
     IMGUI_API ImGuiStyle&   GetStyle();
     IMGUI_API ImDrawData*   GetDrawData();                              // same value as passed to your io.RenderDrawListsFn() function. valid after Render() and until the next call to NewFrame()
-    IMGUI_API void          NewFrame();                                 // start a new ImGui frame, you can submit any command from this point until NewFrame()/Render().
-    IMGUI_API void          Render();                                   // ends the ImGui frame, finalize rendering data, then call your io.RenderDrawListsFn() function if set.
+    IMGUI_API void          NewFrame();                                 // start a new ImGui frame, you can submit any command from this point until Render()/EndFrame().
+    IMGUI_API void          Render();                                   // ends the ImGui frame, finalize the draw data, then call your io.RenderDrawListsFn() function if set.
+    IMGUI_API void          EndFrame();                                 // ends the ImGui frame. automatically called by Render(), so most likely don't need to ever call that yourself directly. If you don't need to render you may call EndFrame() but you'll have wasted CPU already. If you don't need to render, better to not create any imgui windows instead!
     IMGUI_API void          Shutdown();
 
     // Demo/Debug/Info
@@ -258,7 +260,7 @@ namespace ImGui
     IMGUI_API ImGuiID       GetID(const void* ptr_id);
 
     // Widgets: Text
-    IMGUI_API void          TextUnformatted(const char* text, const char* text_end = NULL);               // doesn't require null terminated string if 'text_end' is specified. no copy done, no limits, recommended for long chunks of 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.
     IMGUI_API void          Text(const char* fmt, ...)                                     IM_FMTARGS(1); // simple formatted text
     IMGUI_API void          TextV(const char* fmt, va_list args)                           IM_FMTLIST(1);
     IMGUI_API void          TextColored(const ImVec4& col, const char* fmt, ...)           IM_FMTARGS(2); // shortcut for PushStyleColor(ImGuiCol_Text, col); Text(fmt, ...); PopStyleColor();
@@ -350,7 +352,7 @@ namespace ImGui
     IMGUI_API bool          TreeNodeEx(const void* ptr_id, ImGuiTreeNodeFlags flags, const char* fmt, ...) IM_FMTARGS(3);
     IMGUI_API bool          TreeNodeExV(const char* str_id, ImGuiTreeNodeFlags flags, const char* fmt, va_list args) IM_FMTLIST(3);
     IMGUI_API bool          TreeNodeExV(const void* ptr_id, ImGuiTreeNodeFlags flags, const char* fmt, va_list args) IM_FMTLIST(3);
-    IMGUI_API void          TreePush(const char* str_id = NULL);                                    // ~ Indent()+PushId(). Already called by TreeNode() when returning true, but you can call Push/Pop yourself for layout purpose
+    IMGUI_API void          TreePush(const char* str_id);                                           // ~ Indent()+PushId(). Already called by TreeNode() when returning true, but you can call Push/Pop yourself for layout purpose
     IMGUI_API void          TreePush(const void* ptr_id = NULL);                                    // "
     IMGUI_API void          TreePop();                                                              // ~ Unindent()+PopId()
     IMGUI_API void          TreeAdvanceToLabelPos();                                                // advance cursor x position by GetTreeNodeToLabelSpacing()
@@ -417,6 +419,7 @@ namespace ImGui
     // Styles
     IMGUI_API void          StyleColorsClassic(ImGuiStyle* dst = NULL);
     IMGUI_API void          StyleColorsDark(ImGuiStyle* dst = NULL);
+    IMGUI_API void          StyleColorsLight(ImGuiStyle* dst = NULL);
 
     // Utilities
     IMGUI_API bool          IsItemHovered(ImGuiHoveredFlags flags = 0);                         // is the last item hovered by mouse (and usable)?
@@ -500,7 +503,7 @@ enum ImGuiWindowFlags_
     ImGuiWindowFlags_NoScrollWithMouse      = 1 << 4,   // Disable user vertically scrolling with mouse wheel
     ImGuiWindowFlags_NoCollapse             = 1 << 5,   // Disable user collapsing window by double-clicking on it
     ImGuiWindowFlags_AlwaysAutoResize       = 1 << 6,   // Resize every window to its content every frame
-    ImGuiWindowFlags_ShowBorders            = 1 << 7,   // Show borders around windows and items
+    //ImGuiWindowFlags_ShowBorders          = 1 << 7,   // Show borders around windows and items (OBSOLETE! Use e.g. style.FrameBorderSize=1.0f to enable borders).
     ImGuiWindowFlags_NoSavedSettings        = 1 << 8,   // Never load/save settings in .ini file
     ImGuiWindowFlags_NoInputs               = 1 << 9,   // Disable catching mouse or keyboard inputs, hovering test with pass through.
     ImGuiWindowFlags_MenuBar                = 1 << 10,  // Has a menu-bar
@@ -614,7 +617,7 @@ enum ImGuiCol_
     ImGuiCol_Text,
     ImGuiCol_TextDisabled,
     ImGuiCol_WindowBg,              // Background of normal windows
-    ImGuiCol_ChildWindowBg,         // Background of child windows
+    ImGuiCol_ChildBg,               // Background of child windows
     ImGuiCol_PopupBg,               // Background of popups, menus, tooltips windows
     ImGuiCol_Border,
     ImGuiCol_BorderShadow,
@@ -629,7 +632,6 @@ enum ImGuiCol_
     ImGuiCol_ScrollbarGrab,
     ImGuiCol_ScrollbarGrabHovered,
     ImGuiCol_ScrollbarGrabActive,
-    ImGuiCol_ComboBg,
     ImGuiCol_CheckMark,
     ImGuiCol_SliderGrab,
     ImGuiCol_SliderGrabActive,
@@ -658,7 +660,8 @@ enum ImGuiCol_
 
     // Obsolete names (will be removed)
 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-    , ImGuiCol_Column = ImGuiCol_Separator, ImGuiCol_ColumnHovered = ImGuiCol_SeparatorHovered, ImGuiCol_ColumnActive = ImGuiCol_SeparatorActive
+    //, ImGuiCol_ComboBg = ImGuiCol_PopupBg     // ComboBg has been merged with PopupBg, so a redirect isn't accurate.
+    , ImGuiCol_ChildWindowBg = ImGuiCol_ChildBg, ImGuiCol_Column = ImGuiCol_Separator, ImGuiCol_ColumnHovered = ImGuiCol_SeparatorHovered, ImGuiCol_ColumnActive = ImGuiCol_SeparatorActive
 #endif
 };
 
@@ -671,10 +674,15 @@ enum ImGuiStyleVar_
     ImGuiStyleVar_Alpha,               // float     Alpha
     ImGuiStyleVar_WindowPadding,       // ImVec2    WindowPadding
     ImGuiStyleVar_WindowRounding,      // float     WindowRounding
+    ImGuiStyleVar_WindowBorderSize,    // float     WindowBorderSize
     ImGuiStyleVar_WindowMinSize,       // ImVec2    WindowMinSize
-    ImGuiStyleVar_ChildWindowRounding, // float     ChildWindowRounding
+    ImGuiStyleVar_ChildRounding,       // float     ChildRounding
+    ImGuiStyleVar_ChildBorderSize,     // float     ChildBorderSize
+    ImGuiStyleVar_PopupRounding,       // float     PopupRounding
+    ImGuiStyleVar_PopupBorderSize,     // float     PopupBorderSize
     ImGuiStyleVar_FramePadding,        // ImVec2    FramePadding
     ImGuiStyleVar_FrameRounding,       // float     FrameRounding
+    ImGuiStyleVar_FrameBorderSize,     // float     FrameBorderSize
     ImGuiStyleVar_ItemSpacing,         // ImVec2    ItemSpacing
     ImGuiStyleVar_ItemInnerSpacing,    // ImVec2    ItemInnerSpacing
     ImGuiStyleVar_IndentSpacing,       // float     IndentSpacing
@@ -682,6 +690,11 @@ enum ImGuiStyleVar_
     ImGuiStyleVar_ButtonTextAlign,     // ImVec2    ButtonTextAlign
     ImGuiStyleVar_ViewId,              // uint8_t
     ImGuiStyleVar_Count_
+
+    // Obsolete names (will be removed)
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+    , ImGuiStyleVar_ChildWindowRounding = ImGuiStyleVar_ChildRounding
+#endif
 };
 
 // Enumeration for ColorEdit3() / ColorEdit4() / ColorPicker3() / ColorPicker4() / ColorButton()
@@ -747,12 +760,17 @@ struct ImGuiStyle
 {
     float       Alpha;                      // Global alpha applies to everything in ImGui
     ImVec2      WindowPadding;              // Padding within a window
-    ImVec2      WindowMinSize;              // Minimum window size
     float       WindowRounding;             // Radius of window corners rounding. Set to 0.0f to have rectangular windows
+    float       WindowBorderSize;           // Thickness of border around windows. Generally set to 0.0f or 1.0f. (Other values are not well tested and more CPU/GPU costly)
+    ImVec2      WindowMinSize;              // Minimum window size
     ImVec2      WindowTitleAlign;           // Alignment for title bar text. Defaults to (0.0f,0.5f) for left-aligned,vertically centered.
-    float       ChildWindowRounding;        // Radius of child window corners rounding. Set to 0.0f to have rectangular windows
+    float       ChildRounding;              // Radius of child window corners rounding. Set to 0.0f to have rectangular windows.
+    float       ChildBorderSize;            // Thickness of border around child windows. Generally set to 0.0f or 1.0f. (Other values are not well tested and more CPU/GPU costly)
+    float       PopupRounding;              // Radius of popup window corners rounding.
+    float       PopupBorderSize;            // Thickness of border around popup windows. Generally set to 0.0f or 1.0f. (Other values are not well tested and more CPU/GPU costly)
     ImVec2      FramePadding;               // Padding within a framed rectangle (used by most widgets)
     float       FrameRounding;              // Radius of frame corners rounding. Set to 0.0f to have rectangular frame (used by most widgets).
+    float       FrameBorderSize;            // Thickness of border around frames. Generally set to 0.0f or 1.0f. (Other values are not well tested and more CPU/GPU costly)
     ImVec2      ItemSpacing;                // Horizontal and vertical spacing between widgets/lines
     ImVec2      ItemInnerSpacing;           // Horizontal and vertical spacing between within elements of a composed widget (e.g. a slider and its label)
     ImVec2      TouchExtraPadding;          // Expand reactive bounding box for touch-based system where touch position is not accurate enough. Unfortunately we don't sort widgets so priority on overlap will always be given to the first widget. So don't grow this too much!
@@ -1013,12 +1031,11 @@ struct ImGuiTextFilter
     int                 CountGrep;
 
     IMGUI_API           ImGuiTextFilter(const char* default_filter = "");
-                        ~ImGuiTextFilter() {}
-    void                Clear() { InputBuf[0] = 0; Build(); }
     IMGUI_API bool      Draw(const char* label = "Filter (inc,-exc)", float width = 0.0f);    // Helper calling InputText+Build
     IMGUI_API bool      PassFilter(const char* text, const char* text_end = NULL) const;
-    bool                IsActive() const { return !Filters.empty(); }
     IMGUI_API void      Build();
+    void                Clear() { InputBuf[0] = 0; Build(); }
+    bool                IsActive() const { return !Filters.empty(); }
 };
 
 // Helper: Text buffer for logging/accumulating text
@@ -1109,7 +1126,7 @@ struct ImGuiTextEditCallbackData
     // NB: Helper functions for text manipulation. Calling those function loses selection.
     IMGUI_API void    DeleteChars(int pos, int bytes_count);
     IMGUI_API void    InsertChars(int pos, const char* text, const char* text_end = NULL);
-    bool    HasSelection() const { return SelectionStart != SelectionEnd; }
+    bool              HasSelection() const { return SelectionStart != SelectionEnd; }
 };
 
 // Resizing callback data to apply custom constraint. As enabled by SetNextWindowSizeConstraints(). Callback is called during the next Begin().
@@ -1245,6 +1262,19 @@ struct ImDrawChannel
     ImVector<ImDrawIdx>     IdxBuffer;
 };
 
+enum ImDrawCornerFlags_
+{
+    ImDrawCornerFlags_TopLeft   = 1 << 0, // 0x1
+    ImDrawCornerFlags_TopRight  = 1 << 1, // 0x2
+    ImDrawCornerFlags_BotLeft   = 1 << 2, // 0x4
+    ImDrawCornerFlags_BotRight  = 1 << 3, // 0x8
+    ImDrawCornerFlags_Top       = ImDrawCornerFlags_TopLeft | ImDrawCornerFlags_TopRight,   // 0x3
+    ImDrawCornerFlags_Bot       = ImDrawCornerFlags_BotLeft | ImDrawCornerFlags_BotRight,   // 0xC
+    ImDrawCornerFlags_Left      = ImDrawCornerFlags_TopLeft | ImDrawCornerFlags_BotLeft,    // 0x5
+    ImDrawCornerFlags_Right     = ImDrawCornerFlags_TopRight | ImDrawCornerFlags_BotRight,  // 0xA
+    ImDrawCornerFlags_All       = 0xF     // In your function calls you may use ~0 (= all bits sets) instead of ImDrawCornerFlags_All, as a convenience
+};
+
 // Draw command list
 // This is the low-level list of polygons that ImGui functions are filling. At the end of the frame, all command lists are passed to your ImGuiIO::RenderDrawListFn function for rendering.
 // At the moment, each ImGui window contains its own ImDrawList but they could potentially be merged in the future.
@@ -1283,8 +1313,8 @@ struct ImDrawList
 
     // Primitives
     IMGUI_API void  AddLine(const ImVec2& a, const ImVec2& b, ImU32 col, float thickness = 1.0f);
-    IMGUI_API void  AddRect(const ImVec2& a, const ImVec2& b, ImU32 col, float rounding = 0.0f, int rounding_corners_flags = ~0, float thickness = 1.0f);   // a: upper-left, b: lower-right, rounding_corners_flags: 4-bits corresponding to which corner to round
-    IMGUI_API void  AddRectFilled(const ImVec2& a, const ImVec2& b, ImU32 col, float rounding = 0.0f, int rounding_corners_flags = ~0);                     // a: upper-left, b: lower-right
+    IMGUI_API void  AddRect(const ImVec2& a, const ImVec2& b, ImU32 col, float rounding = 0.0f, int rounding_corners_flags = ImDrawCornerFlags_All, float thickness = 1.0f);   // a: upper-left, b: lower-right, rounding_corners_flags: 4-bits corresponding to which corner to round
+    IMGUI_API void  AddRectFilled(const ImVec2& a, const ImVec2& b, ImU32 col, float rounding = 0.0f, int rounding_corners_flags = ImDrawCornerFlags_All);                     // a: upper-left, b: lower-right
     IMGUI_API void  AddRectFilledMultiColor(const ImVec2& a, const ImVec2& b, ImU32 col_upr_left, ImU32 col_upr_right, ImU32 col_bot_right, ImU32 col_bot_left);
     IMGUI_API void  AddQuad(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, ImU32 col, float thickness = 1.0f);
     IMGUI_API void  AddQuadFilled(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, ImU32 col);
@@ -1296,6 +1326,7 @@ struct ImDrawList
     IMGUI_API void  AddText(const ImFont* font, float font_size, const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end = NULL, float wrap_width = 0.0f, const ImVec4* cpu_fine_clip_rect = NULL);
     IMGUI_API void  AddImage(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a = ImVec2(0,0), const ImVec2& uv_b = ImVec2(1,1), ImU32 col = 0xFFFFFFFF);
     IMGUI_API void  AddImageQuad(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, const ImVec2& uv_a = ImVec2(0,0), const ImVec2& uv_b = ImVec2(1,0), const ImVec2& uv_c = ImVec2(1,1), const ImVec2& uv_d = ImVec2(0,1), ImU32 col = 0xFFFFFFFF);
+    IMGUI_API void  AddImageRounded(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, ImU32 col, float rounding, int rounding_corners = ImDrawCornerFlags_All);
     IMGUI_API void  AddPolyline(const ImVec2* points, const int num_points, ImU32 col, bool closed, float thickness, bool anti_aliased);
     IMGUI_API void  AddConvexPolyFilled(const ImVec2* points, const int num_points, ImU32 col, bool anti_aliased);
     IMGUI_API void  AddBezierCurve(const ImVec2& pos0, const ImVec2& cp0, const ImVec2& cp1, const ImVec2& pos1, ImU32 col, float thickness, int num_segments = 0);
@@ -1309,7 +1340,7 @@ struct ImDrawList
     IMGUI_API void  PathArcTo(const ImVec2& centre, float radius, float a_min, float a_max, int num_segments = 10);
     IMGUI_API void  PathArcToFast(const ImVec2& centre, float radius, int a_min_of_12, int a_max_of_12);                                // Use precomputed angles for a 12 steps circle
     IMGUI_API void  PathBezierCurveTo(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, int num_segments = 0);
-    IMGUI_API void  PathRect(const ImVec2& rect_min, const ImVec2& rect_max, float rounding = 0.0f, int rounding_corners_flags = ~0);   // rounding_corners_flags: 4-bits corresponding to which corner to round
+    IMGUI_API void  PathRect(const ImVec2& rect_min, const ImVec2& rect_max, float rounding = 0.0f, int rounding_corners_flags = ImDrawCornerFlags_All);
 
     // Channels
     // - Use to simulate layers. By switching channels to can render out-of-order (e.g. submit foreground primitives before background primitives)

3rdparty/ocornut-imgui/imgui_demo.cpp

@@ -165,22 +165,20 @@ void ImGui::ShowTestWindow(bool* p_open)
     }
 
     static bool no_titlebar = false;
-    static bool no_border = true;
-    static bool no_resize = false;
-    static bool no_move = false;
     static bool no_scrollbar = false;
-    static bool no_collapse = false;
     static bool no_menu = false;
+    static bool no_move = false;
+    static bool no_resize = false;
+    static bool no_collapse = false;
 
     // Demonstrate the various window flags. Typically you would just use the default.
     ImGuiWindowFlags window_flags = 0;
     if (no_titlebar)  window_flags |= ImGuiWindowFlags_NoTitleBar;
-    if (!no_border)   window_flags |= ImGuiWindowFlags_ShowBorders;
-    if (no_resize)    window_flags |= ImGuiWindowFlags_NoResize;
-    if (no_move)      window_flags |= ImGuiWindowFlags_NoMove;
     if (no_scrollbar) window_flags |= ImGuiWindowFlags_NoScrollbar;
-    if (no_collapse)  window_flags |= ImGuiWindowFlags_NoCollapse;
     if (!no_menu)     window_flags |= ImGuiWindowFlags_MenuBar;
+    if (no_move)      window_flags |= ImGuiWindowFlags_NoMove;
+    if (no_resize)    window_flags |= ImGuiWindowFlags_NoResize;
+    if (no_collapse)  window_flags |= ImGuiWindowFlags_NoCollapse;
     ImGui::SetNextWindowSize(ImVec2(550,680), ImGuiCond_FirstUseEver);
     if (!ImGui::Begin("ImGui Demo", p_open, window_flags))
     {
@@ -238,12 +236,11 @@ void ImGui::ShowTestWindow(bool* p_open)
     if (ImGui::CollapsingHeader("Window options"))
     {
         ImGui::Checkbox("No titlebar", &no_titlebar); ImGui::SameLine(150);
-        ImGui::Checkbox("No border", &no_border); ImGui::SameLine(300);
-        ImGui::Checkbox("No resize", &no_resize);
-        ImGui::Checkbox("No move", &no_move); ImGui::SameLine(150);
         ImGui::Checkbox("No scrollbar", &no_scrollbar); ImGui::SameLine(300);
-        ImGui::Checkbox("No collapse", &no_collapse);
         ImGui::Checkbox("No menu", &no_menu);
+        ImGui::Checkbox("No move", &no_move); ImGui::SameLine(150);
+        ImGui::Checkbox("No resize", &no_resize); ImGui::SameLine(300);
+        ImGui::Checkbox("No collapse", &no_collapse);
 
         if (ImGui::TreeNode("Style"))
         {
@@ -542,7 +539,6 @@ void ImGui::ShowTestWindow(bool* p_open)
         if (ImGui::TreeNode("Images"))
         {
             ImGui::TextWrapped("Below we are displaying the font texture (which is the only texture we have access to in this demo). Use the 'ImTextureID' type as storage to pass pointers or identifier to your own texture data. Hover the texture for a zoomed view!");
-            ImVec2 tex_screen_pos = ImGui::GetCursorScreenPos();
             ImGuiIO& io = ImGui::GetIO();
 
             // Here we are grabbing the font texture because that's the only one we have access to inside the demo code.
@@ -552,23 +548,24 @@ void ImGui::ShowTestWindow(bool* p_open)
             // If you decided that ImTextureID = MyEngineTexture*, then you can pass your MyEngineTexture* pointers to ImGui::Image(), and gather width/height through your own functions, etc.
             // Using ShowMetricsWindow() as a "debugger" to inspect the draw data that are being passed to your render will help you debug issues if you are confused about this.
             // Consider using the lower-level ImDrawList::AddImage() API, via ImGui::GetWindowDrawList()->AddImage().
-            ImTextureID tex_id = io.Fonts->TexID; 
-            float tex_w = (float)io.Fonts->TexWidth;
-            float tex_h = (float)io.Fonts->TexHeight;
+            ImTextureID my_tex_id = io.Fonts->TexID; 
+            float my_tex_w = (float)io.Fonts->TexWidth;
+            float my_tex_h = (float)io.Fonts->TexHeight;
 
-            ImGui::Text("%.0fx%.0f", tex_w, tex_h);
-            ImGui::Image(tex_id, ImVec2(tex_w, tex_h), ImVec2(0,0), ImVec2(1,1), ImColor(255,255,255,255), ImColor(255,255,255,128));
+            ImGui::Text("%.0fx%.0f", my_tex_w, my_tex_h);
+            ImVec2 pos = ImGui::GetCursorScreenPos();
+            ImGui::Image(my_tex_id, ImVec2(my_tex_w, my_tex_h), ImVec2(0,0), ImVec2(1,1), ImColor(255,255,255,255), ImColor(255,255,255,128));
             if (ImGui::IsItemHovered())
             {
                 ImGui::BeginTooltip();
                 float focus_sz = 32.0f;
-                float focus_x = io.MousePos.x - tex_screen_pos.x - focus_sz * 0.5f; if (focus_x < 0.0f) focus_x = 0.0f; else if (focus_x > tex_w - focus_sz) focus_x = tex_w - focus_sz;
-                float focus_y = io.MousePos.y - tex_screen_pos.y - focus_sz * 0.5f; if (focus_y < 0.0f) focus_y = 0.0f; else if (focus_y > tex_h - focus_sz) focus_y = tex_h - focus_sz;
+                float focus_x = io.MousePos.x - pos.x - focus_sz * 0.5f; if (focus_x < 0.0f) focus_x = 0.0f; else if (focus_x > my_tex_w - focus_sz) focus_x = my_tex_w - focus_sz;
+                float focus_y = io.MousePos.y - pos.y - focus_sz * 0.5f; if (focus_y < 0.0f) focus_y = 0.0f; else if (focus_y > my_tex_h - focus_sz) focus_y = my_tex_h - focus_sz;
                 ImGui::Text("Min: (%.2f, %.2f)", focus_x, focus_y);
                 ImGui::Text("Max: (%.2f, %.2f)", focus_x + focus_sz, focus_y + focus_sz);
-                ImVec2 uv0 = ImVec2((focus_x) / tex_w, (focus_y) / tex_h);
-                ImVec2 uv1 = ImVec2((focus_x + focus_sz) / tex_w, (focus_y + focus_sz) / tex_h);
-                ImGui::Image(tex_id, ImVec2(128,128), uv0, uv1, ImColor(255,255,255,255), ImColor(255,255,255,128));
+                ImVec2 uv0 = ImVec2((focus_x) / my_tex_w, (focus_y) / my_tex_h);
+                ImVec2 uv1 = ImVec2((focus_x + focus_sz) / my_tex_w, (focus_y + focus_sz) / my_tex_h);
+                ImGui::Image(my_tex_id, ImVec2(128,128), uv0, uv1, ImColor(255,255,255,255), ImColor(255,255,255,128));
                 ImGui::EndTooltip();
             }
             ImGui::TextWrapped("And now some textured buttons..");
@@ -577,7 +574,7 @@ void ImGui::ShowTestWindow(bool* p_open)
             {
                 ImGui::PushID(i);
                 int frame_padding = -1 + i;     // -1 = uses default padding
-                if (ImGui::ImageButton(tex_id, ImVec2(32,32), ImVec2(0,0), ImVec2(32.0f/tex_w,32/tex_h), frame_padding, ImColor(0,0,0,255)))
+                if (ImGui::ImageButton(my_tex_id, ImVec2(32,32), ImVec2(0,0), ImVec2(32.0f/my_tex_w,32/my_tex_h), frame_padding, ImColor(0,0,0,255)))
                     pressed_count += 1;
                 ImGui::PopID();
                 ImGui::SameLine();
@@ -685,7 +682,6 @@ void ImGui::ShowTestWindow(bool* p_open)
             ImGui::TreePop();
         }
 
-
         if (ImGui::TreeNode("Plots widgets"))
         {
             static bool animate = true;
@@ -1000,7 +996,7 @@ void ImGui::ShowTestWindow(bool* p_open)
 
             ImGui::SameLine();
 
-            ImGui::PushStyleVar(ImGuiStyleVar_ChildWindowRounding, 5.0f);
+            ImGui::PushStyleVar(ImGuiStyleVar_ChildRounding, 5.0f);
             ImGui::BeginChild("Sub2", ImVec2(0,300), true);
             ImGui::Text("With border");
             ImGui::Columns(2);
@@ -1341,7 +1337,7 @@ void ImGui::ShowTestWindow(bool* p_open)
             if (ImGui::Button("Select.."))
                 ImGui::OpenPopup("select");
             ImGui::SameLine();
-            ImGui::Text(selected_fish == -1 ? "<None>" : names[selected_fish]);
+            ImGui::TextUnformatted(selected_fish == -1 ? "<None>" : names[selected_fish]);
             if (ImGui::BeginPopup("select"))
             {
                 ImGui::Text("Aquarium");
@@ -1851,21 +1847,50 @@ void ImGui::ShowTestWindow(bool* p_open)
 
 void ImGui::ShowStyleEditor(ImGuiStyle* ref)
 {
+    // You can pass in a reference ImGuiStyle structure to compare to, revert to and save to (else it compares to an internally stored reference)
     ImGuiStyle& style = ImGui::GetStyle();
+    static ImGuiStyle ref_saved_style;
 
-    // You can pass in a reference ImGuiStyle structure to compare to, revert to and save to (else it compares to the default style)
-    const ImGuiStyle default_style; // Default style
-    if (ImGui::Button("Revert Style"))
-        style = ref ? *ref : default_style;
+    // Default to using internal storage as reference
+    static bool init = true;
+    if (init && ref == NULL)
+        ref_saved_style = style;
+    init = false;
+    if (ref == NULL)
+        ref = &ref_saved_style;
 
-    if (ref)
+    ImGui::PushItemWidth(ImGui::GetWindowWidth() * 0.50f);
+
+    // Default Styles Selector
+    static int style_idx = 0;
+    if (ImGui::Combo("Colors##Selector", &style_idx, "Classic\0Dark\0Light\0"))
     {
-        ImGui::SameLine();
-        if (ImGui::Button("Save Style"))
-            *ref = style;
+        switch (style_idx)
+        {
+        case 0: ImGui::StyleColorsClassic(); break;
+        case 1: ImGui::StyleColorsDark(); break;
+        case 2: ImGui::StyleColorsLight(); break;
+        }
+        ref_saved_style = style;
     }
 
-    ImGui::PushItemWidth(ImGui::GetWindowWidth() * 0.55f);
+    // Simplified Settings
+    if (ImGui::SliderFloat("FrameRounding", &style.FrameRounding, 0.0f, 12.0f, "%.0f")) 
+        style.GrabRounding = style.FrameRounding; // Make GrabRounding always the same value as FrameRounding
+    { bool window_border = (style.WindowBorderSize > 0.0f); if (ImGui::Checkbox("WindowBorder", &window_border)) style.WindowBorderSize = window_border ? 1.0f : 0.0f; }
+    ImGui::SameLine();
+    { bool frame_border = (style.FrameBorderSize > 0.0f); if (ImGui::Checkbox("FrameBorder", &frame_border)) style.FrameBorderSize = frame_border ? 1.0f : 0.0f; }
+    ImGui::SameLine();
+    { bool popup_border = (style.PopupBorderSize > 0.0f); if (ImGui::Checkbox("PopupBorder", &popup_border)) style.PopupBorderSize = popup_border ? 1.0f : 0.0f; }
+
+    // Save/Revert button
+    if (ImGui::Button("Save Ref"))
+        *ref = ref_saved_style = style;
+    ImGui::SameLine();
+    if (ImGui::Button("Revert Ref"))
+        style = *ref;
+    ImGui::SameLine();
+    ShowHelpMarker("Save/Revert in local non-persistent storage. Default Colors definition are not affected. Use \"Export Colors\" below to save them somewhere.");
 
     if (ImGui::TreeNode("Rendering"))
     {
@@ -1882,18 +1907,25 @@ void ImGui::ShowStyleEditor(ImGuiStyle* ref)
     if (ImGui::TreeNode("Settings"))
     {
         ImGui::SliderFloat2("WindowPadding", (float*)&style.WindowPadding, 0.0f, 20.0f, "%.0f");
-        ImGui::SliderFloat("WindowRounding", &style.WindowRounding, 0.0f, 16.0f, "%.0f");
-        ImGui::SliderFloat("ChildWindowRounding", &style.ChildWindowRounding, 0.0f, 16.0f, "%.0f");
+        ImGui::SliderFloat("PopupRounding", &style.PopupRounding, 0.0f, 16.0f, "%.0f");
         ImGui::SliderFloat2("FramePadding", (float*)&style.FramePadding, 0.0f, 20.0f, "%.0f");
-        ImGui::SliderFloat("FrameRounding", &style.FrameRounding, 0.0f, 16.0f, "%.0f");
         ImGui::SliderFloat2("ItemSpacing", (float*)&style.ItemSpacing, 0.0f, 20.0f, "%.0f");
         ImGui::SliderFloat2("ItemInnerSpacing", (float*)&style.ItemInnerSpacing, 0.0f, 20.0f, "%.0f");
         ImGui::SliderFloat2("TouchExtraPadding", (float*)&style.TouchExtraPadding, 0.0f, 10.0f, "%.0f");
         ImGui::SliderFloat("IndentSpacing", &style.IndentSpacing, 0.0f, 30.0f, "%.0f");
         ImGui::SliderFloat("ScrollbarSize", &style.ScrollbarSize, 1.0f, 20.0f, "%.0f");
-        ImGui::SliderFloat("ScrollbarRounding", &style.ScrollbarRounding, 0.0f, 16.0f, "%.0f");
         ImGui::SliderFloat("GrabMinSize", &style.GrabMinSize, 1.0f, 20.0f, "%.0f");
-        ImGui::SliderFloat("GrabRounding", &style.GrabRounding, 0.0f, 16.0f, "%.0f");
+        ImGui::Text("BorderSize");
+        ImGui::SliderFloat("WindowBorderSize", &style.WindowBorderSize, 0.0f, 1.0f, "%.0f");
+        ImGui::SliderFloat("ChildBorderSize", &style.ChildBorderSize, 0.0f, 1.0f, "%.0f");
+        ImGui::SliderFloat("PopupBorderSize", &style.PopupBorderSize, 0.0f, 1.0f, "%.0f");
+        ImGui::SliderFloat("FrameBorderSize", &style.FrameBorderSize, 0.0f, 1.0f, "%.0f");
+        ImGui::Text("Rounding");
+        ImGui::SliderFloat("WindowRounding", &style.WindowRounding, 0.0f, 14.0f, "%.0f");
+        ImGui::SliderFloat("ChildRounding", &style.ChildRounding, 0.0f, 16.0f, "%.0f");
+        ImGui::SliderFloat("FrameRounding", &style.FrameRounding, 0.0f, 12.0f, "%.0f");
+        ImGui::SliderFloat("ScrollbarRounding", &style.ScrollbarRounding, 0.0f, 12.0f, "%.0f");
+        ImGui::SliderFloat("GrabRounding", &style.GrabRounding, 0.0f, 12.0f, "%.0f");
         ImGui::Text("Alignment");
         ImGui::SliderFloat2("WindowTitleAlign", (float*)&style.WindowTitleAlign, 0.0f, 1.0f, "%.2f");
         ImGui::SliderFloat2("ButtonTextAlign", (float*)&style.ButtonTextAlign, 0.0f, 1.0f, "%.2f"); ImGui::SameLine(); ShowHelpMarker("Alignment applies when a button is larger than its text content.");
@@ -1903,8 +1935,8 @@ void ImGui::ShowStyleEditor(ImGuiStyle* ref)
     if (ImGui::TreeNode("Colors"))
     {
         static int output_dest = 0;
-        static bool output_only_modified = false;
-        if (ImGui::Button("Copy Colors"))
+        static bool output_only_modified = true;
+        if (ImGui::Button("Export Unsaved"))
         {
             if (output_dest == 0)
                 ImGui::LogToClipboard();
@@ -1915,13 +1947,13 @@ void ImGui::ShowStyleEditor(ImGuiStyle* ref)
             {
                 const ImVec4& col = style.Colors[i];
                 const char* name = ImGui::GetStyleColorName(i);
-                if (!output_only_modified || memcmp(&col, (ref ? &ref->Colors[i] : &default_style.Colors[i]), sizeof(ImVec4)) != 0)
+                if (!output_only_modified || memcmp(&col, &ref->Colors[i], sizeof(ImVec4)) != 0)
                     ImGui::LogText("colors[ImGuiCol_%s]%*s= ImVec4(%.2ff, %.2ff, %.2ff, %.2ff);" IM_NEWLINE, name, 23-(int)strlen(name), "", col.x, col.y, col.z, col.w);
             }
             ImGui::LogFinish();
         }
         ImGui::SameLine(); ImGui::PushItemWidth(120); ImGui::Combo("##output_type", &output_dest, "To Clipboard\0To TTY\0"); ImGui::PopItemWidth();
-        ImGui::SameLine(); ImGui::Checkbox("Only Modified Fields", &output_only_modified);
+        ImGui::SameLine(); ImGui::Checkbox("Only Modified Colors", &output_only_modified);
 
         ImGui::Text("Tip: Left-click on colored square to open color picker,\nRight-click to open edit options menu.");
 
@@ -1933,7 +1965,7 @@ void ImGui::ShowStyleEditor(ImGuiStyle* ref)
         ImGui::RadioButton("Alpha", &alpha_flags, ImGuiColorEditFlags_AlphaPreview); ImGui::SameLine(); 
         ImGui::RadioButton("Both", &alpha_flags, ImGuiColorEditFlags_AlphaPreviewHalf);
 
-        ImGui::BeginChild("#colors", ImVec2(0, 300), true, ImGuiWindowFlags_AlwaysVerticalScrollbar);
+        ImGui::BeginChild("#colors", ImVec2(0, 300), true, ImGuiWindowFlags_AlwaysVerticalScrollbar | ImGuiWindowFlags_AlwaysHorizontalScrollbar);
         ImGui::PushItemWidth(-160);
         for (int i = 0; i < ImGuiCol_COUNT; i++)
         {
@@ -1941,12 +1973,16 @@ void ImGui::ShowStyleEditor(ImGuiStyle* ref)
             if (!filter.PassFilter(name))
                 continue;
             ImGui::PushID(i);
-            ImGui::ColorEdit4(name, (float*)&style.Colors[i], ImGuiColorEditFlags_AlphaBar | alpha_flags);
-            if (memcmp(&style.Colors[i], (ref ? &ref->Colors[i] : &default_style.Colors[i]), sizeof(ImVec4)) != 0)
+            ImGui::ColorEdit4("##color", (float*)&style.Colors[i], ImGuiColorEditFlags_AlphaBar | alpha_flags);
+            if (memcmp(&style.Colors[i], &ref->Colors[i], sizeof(ImVec4)) != 0)
             {
-                ImGui::SameLine(); if (ImGui::Button("Revert")) style.Colors[i] = ref ? ref->Colors[i] : default_style.Colors[i];
-                if (ref) { ImGui::SameLine(); if (ImGui::Button("Save")) ref->Colors[i] = style.Colors[i]; }
+                // Tips: in a real user application, you may want to merge and use an icon font into the main font, so instead of "Save"/"Revert" you'd use icons.
+                // Read the FAQ and extra_fonts/README.txt about using icon fonts. It's really easy and super convenient!
+                ImGui::SameLine(0.0f, style.ItemInnerSpacing.x); if (ImGui::Button("Save")) ref->Colors[i] = style.Colors[i];
+                ImGui::SameLine(0.0f, style.ItemInnerSpacing.x); if (ImGui::Button("Revert")) style.Colors[i] = ref->Colors[i];
             }
+            ImGui::SameLine(0.0f, style.ItemInnerSpacing.x);
+            ImGui::TextUnformatted(name);
             ImGui::PopID();
         }
         ImGui::PopItemWidth();
@@ -2112,8 +2148,15 @@ static void ShowExampleMenuFile()
     }
     if (ImGui::BeginMenu("Colors"))
     {
+        ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(0,0));
         for (int i = 0; i < ImGuiCol_COUNT; i++)
-            ImGui::MenuItem(ImGui::GetStyleColorName((ImGuiCol)i));
+        {
+            const char* name = ImGui::GetStyleColorName((ImGuiCol)i);
+            ImGui::ColorButton(name, ImGui::GetStyleColorVec4((ImGuiCol)i));
+            ImGui::SameLine();
+            ImGui::MenuItem(name);
+        }
+        ImGui::PopStyleVar();
         ImGui::EndMenu();
     }
     if (ImGui::BeginMenu("Disabled", false)) // Disabled
@@ -2272,8 +2315,9 @@ static void ShowExampleAppCustomRendering(bool* p_open)
         {
             float thickness = (n == 0) ? 1.0f : 4.0f;
             draw_list->AddCircle(ImVec2(x+sz*0.5f, y+sz*0.5f), sz*0.5f, col32, 20, thickness); x += sz+spacing;
-            draw_list->AddRect(ImVec2(x, y), ImVec2(x+sz, y+sz), col32, 0.0f, ~0, thickness); x += sz+spacing;
-            draw_list->AddRect(ImVec2(x, y), ImVec2(x+sz, y+sz), col32, 10.0f, ~0, thickness); x += sz+spacing;
+            draw_list->AddRect(ImVec2(x, y), ImVec2(x+sz, y+sz), col32, 0.0f, ImDrawCornerFlags_All, thickness); x += sz+spacing;
+            draw_list->AddRect(ImVec2(x, y), ImVec2(x+sz, y+sz), col32, 10.0f, ImDrawCornerFlags_All, thickness); x += sz+spacing;
+            draw_list->AddRect(ImVec2(x, y), ImVec2(x+sz, y+sz), col32, 10.0f, ImDrawCornerFlags_TopLeft|ImDrawCornerFlags_BotRight, thickness); x += sz+spacing;
             draw_list->AddTriangle(ImVec2(x+sz*0.5f, y), ImVec2(x+sz,y+sz-0.5f), ImVec2(x,y+sz-0.5f), col32, thickness); x += sz+spacing;
             draw_list->AddLine(ImVec2(x, y), ImVec2(x+sz, y   ), col32, thickness); x += sz+spacing;
             draw_list->AddLine(ImVec2(x, y), ImVec2(x+sz, y+sz), col32, thickness); x += sz+spacing;
@@ -2285,6 +2329,7 @@ static void ShowExampleAppCustomRendering(bool* p_open)
         draw_list->AddCircleFilled(ImVec2(x+sz*0.5f, y+sz*0.5f), sz*0.5f, col32, 32); x += sz+spacing;
         draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x+sz, y+sz), col32); x += sz+spacing;
         draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x+sz, y+sz), col32, 10.0f); x += sz+spacing;
+        draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x+sz, y+sz), col32, 10.0f, ImDrawCornerFlags_TopLeft|ImDrawCornerFlags_BotRight); x += sz+spacing;
         draw_list->AddTriangleFilled(ImVec2(x+sz*0.5f, y), ImVec2(x+sz,y+sz-0.5f), ImVec2(x,y+sz-0.5f), col32); x += sz+spacing;
         draw_list->AddRectFilledMultiColor(ImVec2(x, y), ImVec2(x+sz, y+sz), ImColor(0,0,0), ImColor(255,0,0), ImColor(255,255,0), ImColor(0,255,0));
         ImGui::Dummy(ImVec2((sz+spacing)*8, (sz+spacing)*3));

3rdparty/ocornut-imgui/imgui_draw.cpp

@@ -129,13 +129,13 @@ void ImGui::StyleColorsClassic(ImGuiStyle* dst)
     colors[ImGuiCol_Text]                   = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
     colors[ImGuiCol_TextDisabled]           = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
     colors[ImGuiCol_WindowBg]               = ImVec4(0.00f, 0.00f, 0.00f, 0.70f);
-    colors[ImGuiCol_ChildWindowBg]          = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
-    colors[ImGuiCol_PopupBg]                = ImVec4(0.05f, 0.05f, 0.10f, 0.90f);
-    colors[ImGuiCol_Border]                 = ImVec4(0.70f, 0.70f, 0.70f, 0.40f);
+    colors[ImGuiCol_ChildBg]                = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+    colors[ImGuiCol_PopupBg]                = ImVec4(0.11f, 0.11f, 0.14f, 0.92f);
+    colors[ImGuiCol_Border]                 = ImVec4(0.50f, 0.50f, 0.50f, 0.50f);
     colors[ImGuiCol_BorderShadow]           = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
-    colors[ImGuiCol_FrameBg]                = ImVec4(0.80f, 0.80f, 0.80f, 0.30f);   // Background of checkbox, radio button, plot, slider, text input
-    colors[ImGuiCol_FrameBgHovered]         = ImVec4(0.90f, 0.80f, 0.80f, 0.40f);
-    colors[ImGuiCol_FrameBgActive]          = ImVec4(0.90f, 0.65f, 0.65f, 0.45f);
+    colors[ImGuiCol_FrameBg]                = ImVec4(0.43f, 0.43f, 0.43f, 0.39f);
+    colors[ImGuiCol_FrameBgHovered]         = ImVec4(0.47f, 0.47f, 0.69f, 0.40f);
+    colors[ImGuiCol_FrameBgActive]          = ImVec4(0.42f, 0.41f, 0.64f, 0.69f);
     colors[ImGuiCol_TitleBg]                = ImVec4(0.27f, 0.27f, 0.54f, 0.83f);
     colors[ImGuiCol_TitleBgActive]          = ImVec4(0.32f, 0.32f, 0.63f, 0.87f);
     colors[ImGuiCol_TitleBgCollapsed]       = ImVec4(0.40f, 0.40f, 0.80f, 0.20f);
@@ -143,23 +143,22 @@ void ImGui::StyleColorsClassic(ImGuiStyle* dst)
     colors[ImGuiCol_ScrollbarBg]            = ImVec4(0.20f, 0.25f, 0.30f, 0.60f);
     colors[ImGuiCol_ScrollbarGrab]          = ImVec4(0.40f, 0.40f, 0.80f, 0.30f);
     colors[ImGuiCol_ScrollbarGrabHovered]   = ImVec4(0.40f, 0.40f, 0.80f, 0.40f);
-    colors[ImGuiCol_ScrollbarGrabActive]    = ImVec4(0.80f, 0.50f, 0.50f, 0.40f);
-    colors[ImGuiCol_ComboBg]                = ImVec4(0.20f, 0.20f, 0.20f, 0.99f);
+    colors[ImGuiCol_ScrollbarGrabActive]    = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
     colors[ImGuiCol_CheckMark]              = ImVec4(0.90f, 0.90f, 0.90f, 0.50f);
     colors[ImGuiCol_SliderGrab]             = ImVec4(1.00f, 1.00f, 1.00f, 0.30f);
-    colors[ImGuiCol_SliderGrabActive]       = ImVec4(0.80f, 0.50f, 0.50f, 1.00f);
-    colors[ImGuiCol_Button]                 = ImVec4(0.67f, 0.40f, 0.40f, 0.60f);
-    colors[ImGuiCol_ButtonHovered]          = ImVec4(0.67f, 0.40f, 0.40f, 1.00f);
-    colors[ImGuiCol_ButtonActive]           = ImVec4(0.80f, 0.50f, 0.50f, 1.00f);
+    colors[ImGuiCol_SliderGrabActive]       = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
+    colors[ImGuiCol_Button]                 = ImVec4(0.35f, 0.40f, 0.61f, 0.62f);
+    colors[ImGuiCol_ButtonHovered]          = ImVec4(0.40f, 0.48f, 0.71f, 0.79f);
+    colors[ImGuiCol_ButtonActive]           = ImVec4(0.46f, 0.54f, 0.80f, 1.00f);
     colors[ImGuiCol_Header]                 = ImVec4(0.40f, 0.40f, 0.90f, 0.45f);
     colors[ImGuiCol_HeaderHovered]          = ImVec4(0.45f, 0.45f, 0.90f, 0.80f);
     colors[ImGuiCol_HeaderActive]           = ImVec4(0.53f, 0.53f, 0.87f, 0.80f);
     colors[ImGuiCol_Separator]              = ImVec4(0.50f, 0.50f, 0.50f, 1.00f);
     colors[ImGuiCol_SeparatorHovered]       = ImVec4(0.60f, 0.60f, 0.70f, 1.00f);
     colors[ImGuiCol_SeparatorActive]        = ImVec4(0.70f, 0.70f, 0.90f, 1.00f);
-    colors[ImGuiCol_ResizeGrip]             = ImVec4(1.00f, 1.00f, 1.00f, 0.30f);
-    colors[ImGuiCol_ResizeGripHovered]      = ImVec4(1.00f, 1.00f, 1.00f, 0.60f);
-    colors[ImGuiCol_ResizeGripActive]       = ImVec4(1.00f, 1.00f, 1.00f, 0.90f);
+    colors[ImGuiCol_ResizeGrip]             = ImVec4(1.00f, 1.00f, 1.00f, 0.16f);
+    colors[ImGuiCol_ResizeGripHovered]      = ImVec4(0.78f, 0.82f, 1.00f, 0.60f);
+    colors[ImGuiCol_ResizeGripActive]       = ImVec4(0.78f, 0.82f, 1.00f, 0.90f);
     colors[ImGuiCol_CloseButton]            = ImVec4(0.50f, 0.50f, 0.90f, 0.50f);
     colors[ImGuiCol_CloseButtonHovered]     = ImVec4(0.70f, 0.70f, 0.90f, 0.60f);
     colors[ImGuiCol_CloseButtonActive]      = ImVec4(0.70f, 0.70f, 0.70f, 1.00f);
@@ -177,23 +176,23 @@ void ImGui::StyleColorsDark(ImGuiStyle* dst)
     ImVec4* colors = style->Colors;
 
     colors[ImGuiCol_Text]                   = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
-    colors[ImGuiCol_TextDisabled]           = ImVec4(0.40f, 0.40f, 0.40f, 1.00f);
+    colors[ImGuiCol_TextDisabled]           = ImVec4(0.50f, 0.50f, 0.50f, 1.00f);
     colors[ImGuiCol_WindowBg]               = ImVec4(0.06f, 0.06f, 0.06f, 0.94f);
-    colors[ImGuiCol_Border]                 = ImVec4(1.00f, 1.00f, 1.00f, 0.19f);
-    colors[ImGuiCol_ChildWindowBg]          = ImVec4(1.00f, 1.00f, 1.00f, 0.00f);
-    colors[ImGuiCol_PopupBg]                = ImVec4(0.00f, 0.00f, 0.00f, 0.94f);
+    colors[ImGuiCol_ChildBg]                = ImVec4(1.00f, 1.00f, 1.00f, 0.00f);
+    colors[ImGuiCol_PopupBg]                = ImVec4(0.08f, 0.08f, 0.08f, 0.94f);
+    colors[ImGuiCol_Border]                 = ImVec4(0.43f, 0.43f, 0.50f, 0.50f);
+    colors[ImGuiCol_BorderShadow]           = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
     colors[ImGuiCol_FrameBg]                = ImVec4(0.16f, 0.29f, 0.48f, 0.54f);
     colors[ImGuiCol_FrameBgHovered]         = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
     colors[ImGuiCol_FrameBgActive]          = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
     colors[ImGuiCol_TitleBg]                = ImVec4(0.04f, 0.04f, 0.04f, 1.00f);
-    colors[ImGuiCol_TitleBgActive]          = ImVec4(0.18f, 0.18f, 0.18f, 1.00f);
+    colors[ImGuiCol_TitleBgActive]          = ImVec4(0.16f, 0.29f, 0.48f, 1.00f);
     colors[ImGuiCol_TitleBgCollapsed]       = ImVec4(0.00f, 0.00f, 0.00f, 0.51f);
     colors[ImGuiCol_MenuBarBg]              = ImVec4(0.14f, 0.14f, 0.14f, 1.00f);
     colors[ImGuiCol_ScrollbarBg]            = ImVec4(0.02f, 0.02f, 0.02f, 0.53f);
     colors[ImGuiCol_ScrollbarGrab]          = ImVec4(0.31f, 0.31f, 0.31f, 1.00f);
     colors[ImGuiCol_ScrollbarGrabHovered]   = ImVec4(0.41f, 0.41f, 0.41f, 1.00f);
     colors[ImGuiCol_ScrollbarGrabActive]    = ImVec4(0.51f, 0.51f, 0.51f, 1.00f);
-    colors[ImGuiCol_ComboBg]                = ImVec4(0.14f, 0.14f, 0.14f, 0.99f);
     colors[ImGuiCol_CheckMark]              = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
     colors[ImGuiCol_SliderGrab]             = ImVec4(0.24f, 0.52f, 0.88f, 1.00f);
     colors[ImGuiCol_SliderGrabActive]       = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
@@ -220,6 +219,58 @@ void ImGui::StyleColorsDark(ImGuiStyle* dst)
     colors[ImGuiCol_ModalWindowDarkening]   = ImVec4(0.80f, 0.80f, 0.80f, 0.35f);
 }
 
+void ImGui::StyleColorsLight(ImGuiStyle* dst)
+{
+    ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
+    ImVec4* colors = style->Colors;
+
+    colors[ImGuiCol_Text]                   = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
+    colors[ImGuiCol_TextDisabled]           = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
+    //colors[ImGuiCol_TextHovered]          = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
+    //colors[ImGuiCol_TextActive]           = ImVec4(1.00f, 1.00f, 0.00f, 1.00f);
+    colors[ImGuiCol_WindowBg]               = ImVec4(0.94f, 0.94f, 0.94f, 1.00f);
+    colors[ImGuiCol_ChildBg]                = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+    colors[ImGuiCol_PopupBg]                = ImVec4(1.00f, 1.00f, 1.00f, 0.94f);
+    colors[ImGuiCol_Border]                 = ImVec4(0.00f, 0.00f, 0.00f, 0.30f);
+    colors[ImGuiCol_BorderShadow]           = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+    colors[ImGuiCol_FrameBg]                = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
+    colors[ImGuiCol_FrameBgHovered]         = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
+    colors[ImGuiCol_FrameBgActive]          = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
+    colors[ImGuiCol_TitleBg]                = ImVec4(0.96f, 0.96f, 0.96f, 1.00f);
+    colors[ImGuiCol_TitleBgCollapsed]       = ImVec4(1.00f, 1.00f, 1.00f, 0.51f);
+    colors[ImGuiCol_TitleBgActive]          = ImVec4(0.82f, 0.82f, 0.82f, 1.00f);
+    colors[ImGuiCol_MenuBarBg]              = ImVec4(0.86f, 0.86f, 0.86f, 1.00f);
+    colors[ImGuiCol_ScrollbarBg]            = ImVec4(0.98f, 0.98f, 0.98f, 0.53f);
+    colors[ImGuiCol_ScrollbarGrab]          = ImVec4(0.69f, 0.69f, 0.69f, 0.80f);
+    colors[ImGuiCol_ScrollbarGrabHovered]   = ImVec4(0.49f, 0.49f, 0.49f, 0.80f);
+    colors[ImGuiCol_ScrollbarGrabActive]    = ImVec4(0.49f, 0.49f, 0.49f, 1.00f);
+    colors[ImGuiCol_CheckMark]              = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+    colors[ImGuiCol_SliderGrab]             = ImVec4(0.26f, 0.59f, 0.98f, 0.78f);
+    colors[ImGuiCol_SliderGrabActive]       = ImVec4(0.46f, 0.54f, 0.80f, 0.60f);
+    colors[ImGuiCol_Button]                 = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
+    colors[ImGuiCol_ButtonHovered]          = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+    colors[ImGuiCol_ButtonActive]           = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
+    colors[ImGuiCol_Header]                 = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
+    colors[ImGuiCol_HeaderHovered]          = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
+    colors[ImGuiCol_HeaderActive]           = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+    colors[ImGuiCol_Separator]              = ImVec4(0.39f, 0.39f, 0.39f, 1.00f);
+    colors[ImGuiCol_SeparatorHovered]       = ImVec4(0.26f, 0.59f, 0.98f, 0.78f);
+    colors[ImGuiCol_SeparatorActive]        = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+    colors[ImGuiCol_ResizeGrip]             = ImVec4(0.80f, 0.80f, 0.80f, 0.56f);
+    colors[ImGuiCol_ResizeGripHovered]      = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
+    colors[ImGuiCol_ResizeGripActive]       = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
+    colors[ImGuiCol_CloseButton]            = ImVec4(0.59f, 0.59f, 0.59f, 0.50f);
+    colors[ImGuiCol_CloseButtonHovered]     = ImVec4(0.98f, 0.39f, 0.36f, 1.00f);
+    colors[ImGuiCol_CloseButtonActive]      = ImVec4(0.98f, 0.39f, 0.36f, 1.00f);
+    colors[ImGuiCol_PlotLines]              = ImVec4(0.39f, 0.39f, 0.39f, 1.00f);
+    colors[ImGuiCol_PlotLinesHovered]       = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
+    colors[ImGuiCol_PlotHistogram]          = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
+    colors[ImGuiCol_PlotHistogramHovered]   = ImVec4(1.00f, 0.45f, 0.00f, 1.00f);
+    colors[ImGuiCol_TextSelectedBg]         = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
+    colors[ImGuiCol_ModalWindowDarkening]   = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
+}
+
+
 //-----------------------------------------------------------------------------
 // ImDrawList
 //-----------------------------------------------------------------------------
@@ -882,13 +933,8 @@ void ImDrawList::PathBezierCurveTo(const ImVec2& p2, const ImVec2& p3, const ImV
 
 void ImDrawList::PathRect(const ImVec2& a, const ImVec2& b, float rounding, int rounding_corners)
 {
-    const int corners_top = ImGuiCorner_TopLeft | ImGuiCorner_TopRight;
-    const int corners_bottom = ImGuiCorner_BotLeft | ImGuiCorner_BotRight;
-    const int corners_left = ImGuiCorner_TopLeft | ImGuiCorner_BotLeft;
-    const int corners_right = ImGuiCorner_TopRight | ImGuiCorner_BotRight;
-
-    rounding = ImMin(rounding, fabsf(b.x - a.x) * ( ((rounding_corners & corners_top)  == corners_top)  || ((rounding_corners & corners_bottom) == corners_bottom) ? 0.5f : 1.0f ) - 1.0f);
-    rounding = ImMin(rounding, fabsf(b.y - a.y) * ( ((rounding_corners & corners_left) == corners_left) || ((rounding_corners & corners_right)  == corners_right)  ? 0.5f : 1.0f ) - 1.0f);
+    rounding = ImMin(rounding, fabsf(b.x - a.x) * ( ((rounding_corners & ImDrawCornerFlags_Top)  == ImDrawCornerFlags_Top)  || ((rounding_corners & ImDrawCornerFlags_Bot)   == ImDrawCornerFlags_Bot)   ? 0.5f : 1.0f ) - 1.0f);
+    rounding = ImMin(rounding, fabsf(b.y - a.y) * ( ((rounding_corners & ImDrawCornerFlags_Left) == ImDrawCornerFlags_Left) || ((rounding_corners & ImDrawCornerFlags_Right) == ImDrawCornerFlags_Right) ? 0.5f : 1.0f ) - 1.0f);
 
     if (rounding <= 0.0f || rounding_corners == 0)
     {
@@ -899,10 +945,10 @@ void ImDrawList::PathRect(const ImVec2& a, const ImVec2& b, float rounding, int
     }
     else
     {
-        const float rounding_tl = (rounding_corners & ImGuiCorner_TopLeft) ? rounding : 0.0f;
-        const float rounding_tr = (rounding_corners & ImGuiCorner_TopRight) ? rounding : 0.0f;
-        const float rounding_br = (rounding_corners & ImGuiCorner_BotRight) ? rounding : 0.0f;
-        const float rounding_bl = (rounding_corners & ImGuiCorner_BotLeft) ? rounding : 0.0f;
+        const float rounding_tl = (rounding_corners & ImDrawCornerFlags_TopLeft) ? rounding : 0.0f;
+        const float rounding_tr = (rounding_corners & ImDrawCornerFlags_TopRight) ? rounding : 0.0f;
+        const float rounding_br = (rounding_corners & ImDrawCornerFlags_BotRight) ? rounding : 0.0f;
+        const float rounding_bl = (rounding_corners & ImDrawCornerFlags_BotLeft) ? rounding : 0.0f;
         PathArcToFast(ImVec2(a.x + rounding_tl, a.y + rounding_tl), rounding_tl, 6, 9);
         PathArcToFast(ImVec2(b.x - rounding_tr, a.y + rounding_tr), rounding_tr, 9, 12);
         PathArcToFast(ImVec2(b.x - rounding_br, b.y - rounding_br), rounding_br, 0, 3);
@@ -1075,7 +1121,6 @@ void ImDrawList::AddImage(ImTextureID user_texture_id, const ImVec2& a, const Im
     if ((col & IM_COL32_A_MASK) == 0)
         return;
 
-    // FIXME-OPT: This is wasting draw calls.
     const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back();
     if (push_texture_id)
         PushTextureID(user_texture_id);
@@ -1103,6 +1148,31 @@ void ImDrawList::AddImageQuad(ImTextureID user_texture_id, const ImVec2& a, cons
         PopTextureID();
 }
 
+void ImDrawList::AddImageRounded(ImTextureID user_texture_id, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, ImU32 col, float rounding, int rounding_corners)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+
+    if (rounding <= 0.0f || (rounding_corners & ImDrawCornerFlags_All) == 0)
+    {
+        AddImage(user_texture_id, a, b, uv_a, uv_b, col);
+        return;
+    }
+
+    const bool push_texture_id = _TextureIdStack.empty() || user_texture_id != _TextureIdStack.back();
+    if (push_texture_id)
+        PushTextureID(user_texture_id);
+
+    int vert_start_idx = VtxBuffer.Size;
+    PathRect(a, b, rounding, rounding_corners);
+    PathFillConvex(col);
+    int vert_end_idx = VtxBuffer.Size;
+    ImGui::ShadeVertsLinearUV(VtxBuffer.Data + vert_start_idx, VtxBuffer.Data + vert_end_idx, a, b, uv_a, uv_b, true);
+
+    if (push_texture_id)
+        PopTextureID();
+}
+
 //-----------------------------------------------------------------------------
 // ImDrawData
 //-----------------------------------------------------------------------------
@@ -1177,6 +1247,30 @@ void ImGui::ShadeVertsLinearAlphaGradientForLeftToRightText(ImDrawVert* vert_sta
     }
 }
 
+// Distribute UV over (a, b) rectangle
+void ImGui::ShadeVertsLinearUV(ImDrawVert* vert_start, ImDrawVert* vert_end, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, bool clamp)
+{
+    const ImVec2 size = b - a;
+    const ImVec2 uv_size = uv_b - uv_a;
+    const ImVec2 scale = ImVec2(
+        size.x ? (uv_size.x / size.x) : 0.0f,
+        size.y ? (uv_size.y / size.y) : 0.0f);
+
+    if (clamp)
+    {
+        const ImVec2 min = ImMin(uv_a, uv_b);
+        const ImVec2 max = ImMax(uv_a, uv_b);
+
+        for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
+            vertex->uv = ImClamp(uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale), min, max);
+    }
+    else
+    {
+        for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
+            vertex->uv = uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale);
+    }
+}
+
 //-----------------------------------------------------------------------------
 // ImFontConfig
 //-----------------------------------------------------------------------------
@@ -1568,7 +1662,7 @@ bool    ImFontAtlasBuildWithStbTruetype(ImFontAtlas* atlas)
 
     // Start packing
     const int max_tex_height = 1024*32;
-    stbtt_pack_context spc;
+    stbtt_pack_context spc = {};
     stbtt_PackBegin(&spc, NULL, atlas->TexWidth, max_tex_height, 0, atlas->TexGlyphPadding, NULL);
     stbtt_PackSetOversampling(&spc, 1, 1);
 
@@ -2134,7 +2228,7 @@ void ImFont::AddRemapChar(ImWchar dst, ImWchar src, bool overwrite_dst)
     IndexAdvanceX[dst] = (src < index_size) ? IndexAdvanceX.Data[src] : 1.0f;
 }
 
-const ImFontGlyph* ImFont::FindGlyph(unsigned short c) const
+const ImFontGlyph* ImFont::FindGlyph(ImWchar c) const
 {
     if (c < IndexLookup.Size)
     {

3rdparty/ocornut-imgui/imgui_internal.h

@@ -155,6 +155,7 @@ static inline ImVec2 ImFloor(const ImVec2& v)
 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 ImVec2 ImMul(const ImVec2& lhs, const ImVec2& rhs)                { return ImVec2(lhs.x * rhs.x, lhs.y * rhs.y); }
 
 // We call C++ constructor on own allocated memory via the placement "new(ptr) Type()" syntax.
 // Defining a custom placement new() with a dummy parameter allows us to bypass including <new> which on some platforms complains when user has disabled exceptions.
@@ -242,15 +243,6 @@ enum ImGuiDir
     ImGuiDir_Down    = 3
 };
 
-enum ImGuiCorner
-{
-    ImGuiCorner_TopLeft     = 1 << 0, // 1
-    ImGuiCorner_TopRight    = 1 << 1, // 2
-    ImGuiCorner_BotRight    = 1 << 2, // 4
-    ImGuiCorner_BotLeft     = 1 << 3, // 8
-    ImGuiCorner_All         = 0x0F
-};
-
 // 2D axis aligned bounding-box
 // NB: we can't rely on ImVec2 math operators being available here
 struct IMGUI_API ImRect
@@ -687,17 +679,18 @@ struct IMGUI_API ImGuiWindow
     ImVec2                  SizeContents;                       // Size of contents (== extents reach of the drawing cursor) from previous frame
     ImVec2                  SizeContentsExplicit;               // Size of contents explicitly set by the user via SetNextWindowContentSize()
     ImRect                  ContentsRegionRect;                 // Maximum visible content position in window coordinates. ~~ (SizeContentsExplicit ? SizeContentsExplicit : Size - ScrollbarSizes) - CursorStartPos, per axis
-    ImVec2                  WindowPadding;                      // Window padding at the time of begin. We need to lock it, in particular manipulation of the ShowBorder would have an effect
+    ImVec2                  WindowPadding;                      // Window padding at the time of begin.
+    float                   WindowRounding;                     // Window rounding at the time of begin.
+    float                   WindowBorderSize;                   // Window border size at the time of begin.
     ImGuiID                 MoveId;                             // == window->GetID("#MOVE")
     ImVec2                  Scroll;
     ImVec2                  ScrollTarget;                       // target scroll position. stored as cursor position with scrolling canceled out, so the highest point is always 0.0f. (FLT_MAX for no change)
     ImVec2                  ScrollTargetCenterRatio;            // 0.0f = scroll so that target position is at top, 0.5f = scroll so that target position is centered
     bool                    ScrollbarX, ScrollbarY;
     ImVec2                  ScrollbarSizes;
-    float                   BorderSize;
     bool                    Active;                             // Set to true on Begin()
     bool                    WasActive;
-    bool                    Accessed;                           // Set to true when any widget access the current window
+    bool                    WriteAccessed;                      // Set to true when any widget access the current window
     bool                    Collapsed;                          // Set when collapsing window to become only title-bar
     bool                    SkipItems;                          // Set when items can safely be all clipped (e.g. window not visible or collapsed)
     bool                    Appearing;                          // Set during the frame where the window is appearing (or re-appearing)
@@ -777,7 +770,7 @@ namespace ImGui
     // - ImGui::NewFrame() has never been called, which is illegal.
     // - You are calling ImGui functions after ImGui::Render() and before the next ImGui::NewFrame(), which is also illegal.
     inline    ImGuiWindow*  GetCurrentWindowRead()      { ImGuiContext& g = *GImGui; return g.CurrentWindow; }
-    inline    ImGuiWindow*  GetCurrentWindow()          { ImGuiContext& g = *GImGui; g.CurrentWindow->Accessed = true; return g.CurrentWindow; }
+    inline    ImGuiWindow*  GetCurrentWindow()          { ImGuiContext& g = *GImGui; g.CurrentWindow->WriteAccessed = true; return g.CurrentWindow; }
     IMGUI_API ImGuiWindow*  GetParentWindow();
     IMGUI_API ImGuiWindow*  FindWindowByName(const char* name);
     IMGUI_API void          FocusWindow(ImGuiWindow* window);
@@ -785,7 +778,6 @@ namespace ImGui
     IMGUI_API void          BringWindowToBack(ImGuiWindow* window);
 
     IMGUI_API void          Initialize();
-    IMGUI_API void          EndFrame();                 // Ends the ImGui frame. Automatically called by Render()! you most likely don't need to ever call that yourself directly. If you don't need to render you can call EndFrame() but you'll have wasted CPU already. If you don't need to render, don't create any windows instead!
 
     IMGUI_API void          SetActiveID(ImGuiID id, ImGuiWindow* window);
     IMGUI_API void          ClearActiveID();
@@ -873,6 +865,7 @@ namespace ImGui
     // Shade functions
     IMGUI_API void          ShadeVertsLinearColorGradientKeepAlpha(ImDrawVert* vert_start, ImDrawVert* vert_end, ImVec2 gradient_p0, ImVec2 gradient_p1, ImU32 col0, ImU32 col1);
     IMGUI_API void          ShadeVertsLinearAlphaGradientForLeftToRightText(ImDrawVert* vert_start, ImDrawVert* vert_end, float gradient_p0_x, float gradient_p1_x);
+    IMGUI_API void          ShadeVertsLinearUV(ImDrawVert* vert_start, ImDrawVert* vert_end, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, bool clamp);
 
 } // namespace ImGui
 

3rdparty/ocornut-imgui/widgets/dock.inl

@@ -369,17 +369,17 @@ namespace ImGui
 			ImGuiWindowFlags flags = ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize |
 				ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoCollapse |
 				ImGuiWindowFlags_NoSavedSettings | ImGuiWindowFlags_NoScrollbar |
-				ImGuiWindowFlags_NoScrollWithMouse | ImGuiWindowFlags_ShowBorders | 
+				ImGuiWindowFlags_NoScrollWithMouse |
 				ImGuiWindowFlags_NoBringToFrontOnFocus;
 			Dock* root = getRootDock();
-      const ImVec2& displaySize = GetIO().DisplaySize;
+			const ImVec2& displaySize = GetIO().DisplaySize;
 			if (root)
 			{
-        const ImVec2 percentage(displaySize.x / root->size.x, displaySize.y / root->size.y );
-        const ImVec2 rescaledPos = root->pos * percentage;
-        const ImVec2 rescaledSize = root->size * percentage;
-        SetNextWindowPos(rescaledPos);
-        SetNextWindowSize(rescaledSize);
+				const ImVec2 percentage(displaySize.x / root->size.x, displaySize.y / root->size.y );
+				const ImVec2 rescaledPos = root->pos * percentage;
+				const ImVec2 rescaledSize = root->size * percentage;
+				SetNextWindowPos(rescaledPos);
+				SetNextWindowSize(rescaledSize);
 			}
 			else
 			{
@@ -970,7 +970,7 @@ namespace ImGui
 						opened,
 						dock.size,
 						-1.0f,
-						ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_ShowBorders | extra_flags);
+						ImGuiWindowFlags_NoCollapse | extra_flags);
 				m_end_action = EndAction_End;
 				dock.pos = GetWindowPos();
 				dock.size = GetWindowSize();

examples/common/imgui/imgui.cpp

@@ -345,7 +345,6 @@ struct OcornutImguiContext
 		style.Colors[ImGuiCol_ScrollbarGrab]         = ImVec4(0.69f, 0.69f, 0.69f, 0.80f);
 		style.Colors[ImGuiCol_ScrollbarGrabHovered]  = ImVec4(0.49f, 0.49f, 0.49f, 0.80f);
 		style.Colors[ImGuiCol_ScrollbarGrabActive]   = ImVec4(0.49f, 0.49f, 0.49f, 1.00f);
-		style.Colors[ImGuiCol_ComboBg]               = ImVec4(0.86f, 0.86f, 0.86f, 0.99f);
 		style.Colors[ImGuiCol_CheckMark]             = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
 		style.Colors[ImGuiCol_SliderGrab]            = ImVec4(0.26f, 0.59f, 0.98f, 0.78f);
 		style.Colors[ImGuiCol_SliderGrabActive]      = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);