private static void initEditorSettings(@Nullable Editor editor) {
   if (editor == null) {
     return;
   }
   Project project = editor.getProject();
   DiffMergeSettings settings =
       project == null ? null : ServiceManager.getService(project, DiffToolSettings.class);
   for (DiffMergeEditorSetting property : DiffMergeEditorSetting.values()) {
     property.apply(
         editor, settings == null ? property.getDefault() : settings.getPreference(property));
   }
   ((EditorEx) editor).getGutterComponentEx().setShowDefaultGutterPopup(false);
 }