public void actionPerformed(ActionEvent event) {
        String command = event.getActionCommand();
        if (command.equals("SelectLabelFont")) {
            attemptLabelFontSelection();
        }
        else if (command.equals("SelectLabelPaint")) {
            attemptModifyLabelPaint();
        }
        else if (command.equals("SelectTickLabelFont")) {
            attemptTickLabelFontSelection();