createCanvas(400, 400);

}

​

function draw() {

  background(220);

  //left for mouseX

  fill(0)

  text("mouseX controls red shade", 30, 130);

  fill(mouseX, 0,0);

  circle(100,200,100);

  //right for mouseY

  fill(0)

  text("mouseY controls green shade", 230, 130);

  fill(0, mouseY,0)

   circle(300,200,100)

}