public void updateGutterIcon(@Nullable final GutterIconRenderer renderer) {
    AppUIUtil.invokeOnEdt(() -> {
      if (myRangeHighlighter != null && myGutterIconRenderer != null) {
        myRangeHighlighter.setGutterIconRenderer(renderer);
      }
    });
  }
public void updateGutterIcon(@Nullable final GutterIconRenderer renderer)