Graffiti-Core
// Performed Initialization

gc = new GraffitiCore({
  selector: '#graffiti',

  width: 600,
  height: 300,

  brush: {
    width: 40,
    color: 'rgba(200, 200, 50, 0.75)'
  }
});

// API

gc.prev();
gc.next();
gc.clear();
alert(gc.data());
gc.setBrush({
  width: 40,
  color: 'rgba(200, 200, 50, 0.75)'
});