private void ensureSynchronizingWithGlobalScheme() {
    if (myEditorColorSchemeConnection == null) {
      myEditorColorSchemeConnection = ApplicationManager.getApplication().getMessageBus().connect(myDisposable);
      myEditorColorSchemeConnection.subscribe(EditorColorsManager.TOPIC, scheme -> editorColorSchemeChanged(scheme));
      myEditorColorSchemeConnection.subscribe(LafManagerListener.TOPIC, source -> updateEnabledState());
    }
  }
private void ensureSynchronizingWithGlobalScheme()