public void actionPerformed(ActionEvent e) {
try {
LookAndFeelInfo info = (LookAndFeelInfo) box.getSelectedItem();
UIManager.setLookAndFeel(info.getClassName());
SwingUtilities.updateComponentTreeUI(f);
f.invalidate();
f.repaint();
} catch (Exception e1) {
SimSystem.report(e1);
}
}