2 files changed, 22 insertions, 1 deletions

diff --git a/platform/windows/display_server_windows.cpp b/platform/windows/display_server_windows.cpp
index 96e2f95abd..7d96bded14 100644
--- a/platform/windows/display_server_windows.cpp
+++ b/platform/windows/display_server_windows.cpp
@@ -3494,13 +3494,17 @@ LRESULT DisplayServerWindows::WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARA
 		case WM_PAINT: {
 			Main::force_redraw();
 		} break;
-		case WM_SETTINGCHANGE: {
+		case WM_SETTINGCHANGE:
+		case WM_SYSCOLORCHANGE: {
 			if (lParam && CompareStringOrdinal(reinterpret_cast<LPCWCH>(lParam), -1, L"ImmersiveColorSet", -1, true) == CSTR_EQUAL) {
 				if (is_dark_mode_supported() && dark_title_available) {
 					BOOL value = is_dark_mode();
 					::DwmSetWindowAttribute(windows[window_id].hWnd, use_legacy_dark_mode_before_20H1 ? DWMWA_USE_IMMERSIVE_DARK_MODE_BEFORE_20H1 : DWMWA_USE_IMMERSIVE_DARK_MODE, &value, sizeof(value));
 				}
 			}
+			if (system_theme_changed.is_valid()) {
+				system_theme_changed.call();
+			}
 		} break;
 		case WM_THEMECHANGED: {
 			if (is_dark_mode_supported() && dark_title_available) {
@@ -5058,6 +5062,19 @@ Color DisplayServerWindows::get_accent_color() const {
 	return Color((argb & 0xFF) / 255.f, ((argb & 0xFF00) >> 8) / 255.f, ((argb & 0xFF0000) >> 16) / 255.f, ((argb & 0xFF000000) >> 24) / 255.f);
 }
 
+Color DisplayServerWindows::get_base_color() const {
+	if (!ux_theme_available) {
+		return Color(0, 0, 0, 0);
+	}
+
+	int argb = GetImmersiveColorFromColorSetEx((UINT)GetImmersiveUserColorSetPreference(false, false), GetImmersiveColorTypeFromName(ShouldAppsUseDarkMode() ? L"ImmersiveDarkChromeMediumLow" : L"ImmersiveLightChromeMediumLow"), false, 0);
+	return Color((argb & 0xFF) / 255.f, ((argb & 0xFF00) >> 8) / 255.f, ((argb & 0xFF0000) >> 16) / 255.f, ((argb & 0xFF000000) >> 24) / 255.f);
+}
+
+void DisplayServerWindows::set_system_theme_change_callback(const Callable &p_callable) {
+	system_theme_changed = p_callable;
+}
+
 int DisplayServerWindows::tablet_get_driver_count() const {
 	return tablet_drivers.size();
 }
diff --git a/platform/windows/display_server_windows.h b/platform/windows/display_server_windows.h
index e66c533da5..81cddec49f 100644
--- a/platform/windows/display_server_windows.h
+++ b/platform/windows/display_server_windows.h
@@ -477,6 +477,8 @@ class DisplayServerWindows : public DisplayServer {
 	CursorShape cursor_shape = CursorShape::CURSOR_ARROW;
 	RBMap<CursorShape, Vector<Variant>> cursors_cache;
 
+	Callable system_theme_changed;
+
 	void _drag_event(WindowID p_window, float p_x, float p_y, int idx);
 	void _touch_event(WindowID p_window, bool p_pressed, float p_x, float p_y, int idx);
 
@@ -522,6 +524,8 @@ public:
 	virtual bool is_dark_mode_supported() const override;
 	virtual bool is_dark_mode() const override;
 	virtual Color get_accent_color() const override;
+	virtual Color get_base_color() const override;
+	virtual void set_system_theme_change_callback(const Callable &p_callable) override;
 
 	virtual Error file_dialog_show(const String &p_title, const String &p_current_directory, const String &p_filename, bool p_show_hidden, FileDialogMode p_mode, const Vector<String> &p_filters, const Callable &p_callback) override;
 	virtual Error file_dialog_with_options_show(const String &p_title, const String &p_current_directory, const String &p_root, const String &p_filename, bool p_show_hidden, FileDialogMode p_mode, const Vector<String> &p_filters, const TypedArray<Dictionary> &p_options, const Callable &p_callback) override;