Merge pull request #42417 from Calinou/autokey-pressed-red-icon

Make the pressed autokey icon red to emphasize its "recording" status

editor/plugins/canvas_item_editor_plugin.cpp

@@ -4023,6 +4023,12 @@ void CanvasItemEditor::_notification(int p_what) {
  key_scale_button->set_icon(get_theme_icon("KeyScale", "EditorIcons"));
  key_insert_button->set_icon(get_theme_icon("Key", "EditorIcons"));
  key_auto_insert_button->set_icon(get_theme_icon("AutoKey", "EditorIcons"));
+ // Use a different color for the active autokey icon to make them easier
+ // to distinguish from the other key icons at the top. On a light theme,
+ // the icon will be dark, so we need to lighten it before blending it
+ // with the red color.
+ const Color key_auto_color = EditorSettings::get_singleton()->is_dark_theme() ? Color(1, 1, 1) : Color(4.25, 4.25, 4.25);
+ key_auto_insert_button->add_theme_color_override("icon_color_pressed", key_auto_color.lerp(Color(1, 0, 0), 0.55));
  animation_menu->set_icon(get_theme_icon("GuiTabMenuHl", "EditorIcons"));
 
  zoom_minus->set_icon(get_theme_icon("ZoomLess", "EditorIcons"));