function setup() {

  createCanvas(400, 400);

}

​

function draw() {

  //loop to draw smaller squares after each iteration

  rectMode(CENTER)

  background(220);

  for( let i =100; i>=0; i-=10){

    noFill()

    print(i);

    fill(random(255),random(255),random(255))

    rect(width/2,height/2,i,i)

    print("next\n"+i)

  }

}

​

​

​