​

let y = 0

​

let ballWidth = 30

​

let redness = 225

​

function setup() {

  createCanvas(400, 400);

}

​

function draw() {

  background(220);

  x = x + 3

  y = y + 2

  redness = redness - 1

  ballWidth = ballWidth + 2

  fill (redness, 0, 50)

  ellipse(x,y,ballWidth,ballWidth)

}