public static void main(String[] args) {
        try {
            UIManager.setLookAndFeel("com.jgoodies.looks.plastic.PlasticXPLookAndFeel");
        } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
            //ignored
        }
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                mf = new MainFrame();
                mf.setLocationRelativeTo(null);
                mf.setVisible(true);
            }
        });
    }