@Override
  protected void initClassCombo(JComboBox classCombo) {
    classCombo.setRenderer(new ClassCellRenderer(classCombo.getRenderer()));
    classCombo.addItemListener(new ItemListener() {
      @Override
      public void itemStateChanged(ItemEvent e) {
        if (e.getStateChange() == ItemEvent.SELECTED) {
          updateMemberPanels();
        }
      }
    });
  }
@Override
  protected void initClassCombo(JComboBox classCombo)