var delay = 0;
var a = 0;
var b = 0;
var c = 0;
var d = 0;

//millis() gets you the time in ms
//wheel(num, brightness) is the color wheel from r - g - b - back to r. 
//Use 0 - 255 for color and 0.1 - 1.0 for brightness
//setPixelColor(pos, color) <-- color can be an object {r: 255, b: 0, g: 120}
//or a wheel: wheel(175);
//getPixelColor(pos) <-- returns e.g. {r: 255, b: 0, g: 120}

//Check the console for errors