let ySpacing =3;

let xMargin = 50;

let yMargin = 100;

let maxJ = 1; // the maximum vertical jitter

let maxW = 10; // the maxium possible circle width

​

​

function setup() {

  createCanvas(800, 400, SVG);

  noFill();

  noLoop(); // tells the draw function NOT to repeat

​

}

​

function draw() {

  background(220);

​

  for (let y = yMargin; y < height-yMargin; y += ySpacing) {

    let w = random(maxW);

      let index = 0;

    for (let x = xMargin; x < width-xMargin; x += xSpacing) {

      let jit = random(-maxJ*index,maxJ*index);

      circle(x, y+jit, w);

      index++;

    }

  }

​

​

}

​