Green Rectangles - OpenProcessing

mySketch
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function setup(){
  createCanvas(windowWidth, windowHeight);
  background(0);
}
​
​
function draw() {
  translate(mouseX, mouseY);
  rectMode(CENTER);
  
  if (mouseIsPressed) {
    if (mouseButton == LEFT) {
      rotate(random(PI));
      noFill();
      stroke(0, 255, random(200));
      rect(0, 0, 50, 50);
    }
  }
​
  if (mouseIsPressed) {
    if(mouseButton == RIGHT) {
      background(0);
    }
  }
}