@Override
  public void installUI(JComponent c) {
    ToolbarComboWidget widget = (ToolbarComboWidget)c;
    setUIDefaults(widget);
    widget.addPropertyChangeListener(this);
    tryUpdateHtmlRenderer(widget, widget.getText());
    hoverTracker.installTo(widget);
    clickListener.installOn(widget);
  }
@Override
  public void installUI(JComponent c)