void musicButton_Tapped(object sender, EventArgs e)
        {
            BooleanButton button = sender as BooleanButton;

            // In a real game, you'd want to store away the value of
            // the button to turn off music here. :)
        }
        public PhoneMainMenuScreen()
            : base("Main Menu")
        {
            // Create a button to start the game
            Button playButton = new Button("Play");

            playButton.Tapped += playButton_Tapped;
            MenuButtons.Add(playButton);

            // Create two buttons to toggle sound effects and music. This sample just shows one way
            // of making and using these buttons; it doesn't actually have sound effects or music
            BooleanButton sfxButton = new BooleanButton("Sound Effects", true);

            sfxButton.Tapped += sfxButton_Tapped;
            MenuButtons.Add(sfxButton);

            BooleanButton musicButton = new BooleanButton("Music", true);

            musicButton.Tapped += musicButton_Tapped;
            MenuButtons.Add(musicButton);
        }