@Override
  public void updateUI() {
    super.updateUI();
    if (myTree!= null) {
      myTree.updateUI();
    }
    // Use the tree's default foreground and background colors in the
    // table.
    LookAndFeel.installColorsAndFont(this, "Tree.background", "Tree.foreground", "Tree.font");
  }
@Override
  public void updateUI()