function setup() {
createCanvas(windowWidth,
windowHeight);
background(345,345,345);
}
function draw() {
var from = color(0, 100, 125, 30);
var to = color(355, 200, 250, 50);
stroke(155, 70);
fill(lerpColor(from, to, random(2.0)));
rect(random(width), random(height), 100, 100);
}