function setup() {
createCanvas(windowWidth,
windowHeight);
background(random(1,255),random(1,255),random(1,255));
}
function draw() {
var from = color(255, 200, 255, 40);
var to = color(random(1,255), random(1,255), random(1,255));
fill(lerpColor(from, to, random(6.0)));
rect(random(width), random(height), random(1,height),random(1,width));
}