Style: added ImGuiCol_UnsavedMarker. (#8983)

docs/CHANGELOG.txt

@@ -64,6 +64,8 @@ Other Changes:
   The grip is not visible before hovering to reduce clutter.
 - InputText: fixed single-line InputText() not applying fine character clipping
   properly (regression in 1.92.3). (#8967) [@Cyphall]
+- Style: added ImGuiCol_UnsavedMarker, color of the unsaved document marker when
+  using ImGuiWindowFlags_UnsavedDocument/ImGuiTabItemFlags_UnsavedDocument. (#8983)
 - IO: added ImGuiPlatformIO::ClearPlatformHandlers(), ClearRendererHandlers()
   helpers to null all handlers. (#8945, #2769)
 - Misc: Debuggers: added type formatters for the LLDB debuggers (e.g. Xcode,

imgui.cpp

@@ -3693,6 +3693,7 @@ const char* ImGui::GetStyleColorName(ImGuiCol idx)
     case ImGuiCol_TextSelectedBg: return "TextSelectedBg";
     case ImGuiCol_TreeLines: return "TreeLines";
     case ImGuiCol_DragDropTarget: return "DragDropTarget";
+    case ImGuiCol_UnsavedMarker: return "UnsavedMarker";
     case ImGuiCol_NavCursor: return "NavCursor";
     case ImGuiCol_NavWindowingHighlight: return "NavWindowingHighlight";
     case ImGuiCol_NavWindowingDimBg: return "NavWindowingDimBg";
@@ -7169,7 +7170,7 @@ void ImGui::RenderWindowTitleBarContents(ImGuiWindow* window, const ImRect& titl
         marker_pos.y = (layout_r.Min.y + layout_r.Max.y) * 0.5f;
         if (marker_pos.x > layout_r.Min.x)
         {
-            RenderBullet(window->DrawList, marker_pos, GetColorU32(ImGuiCol_Text));
+            RenderBullet(window->DrawList, marker_pos, GetColorU32(ImGuiCol_UnsavedMarker));
             clip_r.Max.x = ImMin(clip_r.Max.x, marker_pos.x - (int)(marker_size_x * 0.5f));
         }
     }

imgui.h

@@ -1774,6 +1774,7 @@ enum ImGuiCol_
     ImGuiCol_TextSelectedBg,        // Selected text inside an InputText
     ImGuiCol_TreeLines,             // Tree node hierarchy outlines when using ImGuiTreeNodeFlags_DrawLines
     ImGuiCol_DragDropTarget,        // Rectangle highlighting a drop target
+    ImGuiCol_UnsavedMarker,         // Unsaved Document marker (in window title and tabs)
     ImGuiCol_NavCursor,             // Color of keyboard/gamepad navigation cursor/rectangle, when visible
     ImGuiCol_NavWindowingHighlight, // Highlight window when using CTRL+TAB
     ImGuiCol_NavWindowingDimBg,     // Darken/colorize entire screen behind the CTRL+TAB window list, when active

imgui_draw.cpp

@@ -240,6 +240,7 @@ void ImGui::StyleColorsDark(ImGuiStyle* dst)
     colors[ImGuiCol_TextSelectedBg]         = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
     colors[ImGuiCol_TreeLines]              = colors[ImGuiCol_Border];
     colors[ImGuiCol_DragDropTarget]         = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
+    colors[ImGuiCol_UnsavedMarker]          = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
     colors[ImGuiCol_NavCursor]              = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
     colors[ImGuiCol_NavWindowingHighlight]  = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
     colors[ImGuiCol_NavWindowingDimBg]      = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
@@ -305,6 +306,7 @@ void ImGui::StyleColorsClassic(ImGuiStyle* dst)
     colors[ImGuiCol_TextSelectedBg]         = ImVec4(0.00f, 0.00f, 1.00f, 0.35f);
     colors[ImGuiCol_TreeLines]              = colors[ImGuiCol_Border];
     colors[ImGuiCol_DragDropTarget]         = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
+    colors[ImGuiCol_UnsavedMarker]          = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
     colors[ImGuiCol_NavCursor]              = colors[ImGuiCol_HeaderHovered];
     colors[ImGuiCol_NavWindowingHighlight]  = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
     colors[ImGuiCol_NavWindowingDimBg]      = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
@@ -371,6 +373,7 @@ void ImGui::StyleColorsLight(ImGuiStyle* dst)
     colors[ImGuiCol_TextSelectedBg]         = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
     colors[ImGuiCol_TreeLines]              = colors[ImGuiCol_Border];
     colors[ImGuiCol_DragDropTarget]         = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
+    colors[ImGuiCol_UnsavedMarker]          = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
     colors[ImGuiCol_NavCursor]              = colors[ImGuiCol_HeaderHovered];
     colors[ImGuiCol_NavWindowingHighlight]  = ImVec4(0.70f, 0.70f, 0.70f, 0.70f);
     colors[ImGuiCol_NavWindowingDimBg]      = ImVec4(0.20f, 0.20f, 0.20f, 0.20f);

imgui_widgets.cpp

@@ -10716,8 +10716,8 @@ void ImGui::TabItemLabelAndCloseButton(ImDrawList* draw_list, const ImRect& bb,
     const bool unsaved_marker_visible = (flags & ImGuiTabItemFlags_UnsavedDocument) != 0 && (button_pos.x + button_sz <= bb.Max.x) && (!close_button_visible || !is_hovered);
     if (unsaved_marker_visible)
     {
-        const ImRect bullet_bb(button_pos, button_pos + ImVec2(button_sz, button_sz));
-        RenderBullet(draw_list, bullet_bb.GetCenter(), GetColorU32(ImGuiCol_Text));
+        ImVec2 bullet_pos = button_pos + ImVec2(button_sz, button_sz) * 0.5f;
+        RenderBullet(draw_list, bullet_pos, GetColorU32(ImGuiCol_UnsavedMarker));
     }
     else if (close_button_visible)
     {