Merge pull request godotengine#97820 from passivestar/quick-open-bg

Fix quick open background panel style

Author: akien-mga

editor/gui/editor_quick_open_dialog.cpp

@@ -709,7 +709,7 @@ void QuickOpenResultContainer::_notification(int p_what) {
 			file_details_path->add_theme_color_override(SceneStringName(font_color), text_color);
 			no_results_label->add_theme_color_override(SceneStringName(font_color), text_color);
 
-			panel_container->add_theme_style_override(SceneStringName(panel), get_theme_stylebox(SNAME("QuickOpenBackgroundPanel"), EditorStringName(EditorStyles)));
+			panel_container->add_theme_style_override(SceneStringName(panel), get_theme_stylebox(SceneStringName(panel), SNAME("Tree")));
 
 			if (content_display_mode == QuickOpenDisplayMode::LIST) {
 				display_mode_toggle->set_icon(get_editor_theme_icon(SNAME("FileThumbnail")));