function setup(){

	createCanvas(600,600);

	background(255);

	frameRate(3);

}

function draw(){

	stroke(0);

	fill(random(150,255),random(150,255),random(150,255));

    rect(random(50,300),random(50,300),random(200,400),random(200,400));

	

	stroke(0);

    fill(random(125,230),random(125,230),random(125,230));

    rect(random(50,300),random(50,300),random(150,250),random(250,450));

	

	stroke(0);

	fill(random(100,205),random(100,205),random(100,205));

    rect(random(50,350),random(50,300),random(200,300),random(200,300));

	

	stroke(0);

	fill(random(75,150),random(75,150),random(75,150),random(50,150));

    rect(random(50,100),random(50,100),random(400,500),random(400,500));

	

	stroke(0);

	fill(random(50,125),random(50,125),random(50,125),random(50,150));

    rect(random(50,100),random(50,100),random(400,500),random(400,500));

	

	stroke(0);

	fill(random(25,100),random(25,100),random(25,100),random(50,150));

    rect(random(50,100),random(50,100),random(400,500),random(400,500));

	

	stroke(0);

	fill(0,0,0,30);

	rect(0,0,600,600);

}