code: @Override protected void handleEvents(final String EVENT_TYPE) {
          super.handleEvents(EVENT_TYPE);
  
          if ("VISIBILITY".equals(EVENT_TYPE)) {
              Helper.enableNode(titleText, !tile.getTitle().isEmpty());
              Helper.enableNode(text, tile.isTextVisible());
              chartCanvas.setWidth(tile.isTextVisible() ? size * 0.68 : size * 0.795);
              chartCanvas.setHeight(tile.isTextVisible() ? size * 0.68 : size * 0.795);
          }
      }
docs: ******************** Methods *******************************************