MenuOption musicVolumeOption = new MenuOption(musicVolumeName, new Action("changeVolume"){
            @Override
            public void execute() {
                Console.changeMusicVolume((((int)(pref.getFloat("music", 0.5f) * 10) + 1) % 11) / 10f);
                pref.flush();
            }
        });
        musicVolumeOption.setValue((int)(pref.getFloat("music", 0.5f) * 100) + "%");