​

function setup() {

  createCanvas(600, 600);

  noStroke();

  background(0);

}

​

function draw() {

​

}

​

function mouseDragged() {

  redC = random(255);

  greenC = random(255);

  blueC = random(255);

  stroke(random(4, 255));

  // background(greenC, blueC, redC);

  fill(redC, greenC, blueC);

  ellipse(mouseX, mouseY, random(255), random(255));

}