function setup() {

  createCanvas(windowWidth,

               windowHeight);

  background(234, 234, 84);

}



function draw() {

  var from = color(300, 200, 400, 100);

  var to = color(255, 300, 150, 50);



  stroke(255, 400);

  fill(lerpColor(from, to, random(2.0)));

  rect(random(width), random(height), 100,30);

}