@Override
  public AnAction createCollapseAllHeaderAction(TreeExpander expander, JComponent component) {
    AnAction action = createCollapseAllAction(expander, component);
    action.getTemplatePresentation().setIcon(AllIcons.Actions.Collapseall);
    return action;
  }
@Override
  public AnAction createCollapseAllHeaderAction(TreeExpander expander, JComponent component)