code: function colorForTouch(touch) {
     var id = touch.identifier + (100 * Math.random());
    var r = Math.floor(id % 16);
    var g = Math.floor(id / 3) % 16;
    var b = Math.floor(id / 7) % 16;
    r = r.toString(16);
    g = g.toString(16);
    b = b.toString(16);
    var color = "#" + r + g + b;
    gamejs.logging.log(color)
    return color;
  }
docs: create random color from touch identifier