function setup() {

  createCanvas(windowWidth,

               windowHeight);

  background(500,500,500);

}

function draw() {

  var from = color(0, 200, 255, 40);

  var to = color(255, 100, 150, 40);



  fill(lerpColor(from, to, random(1.0)));

  rect(random(width), random(height), 50, 50);

}

function draw() {

  noFill();

  stroke(random(0, 500), random(0, 500), random(0, 750));

  ellipse(random(0, 500),  random(0, 500),  random(150, 500));

}