My ms paint - OpenProcessing

mySketch
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function setup() {
  createCanvas(windowWidth, windowHeight);
  background(255);
}
​
function draw() {
  noStroke();
  push();
  fill(0,0,0)
  rect(0,0,50,50);
  fill(0,255,0)
  rect(0,50,50,50);
  fill(0,0,255)
  rect(0,100,50,50);
  fill(255,0,0) 
  rect(0,150,50,50)
  fill(255,255,0)
  rect(0,200,50,50)
  fill(255,165,0)
  rect(0,250,50,50)
  fill(255,0,255)
  rect(0,300,50,50)
  fill(139,69,19)
  rect(0,350,50,50)
  pop();
  if (mouseIsPressed){
  if (dist(mouseX,mouseY,50,50) < (50))
      {
      fill(0,0,0)
      }
  if (dist(mouseX,mouseY,50,100) < (50))
  {
    fill(0,255,0)
  }
    if (dist(mouseX,mouseY,50,150) < (50))
  {
    fill(0,0,255)
  }
        if (dist(mouseX,mouseY,50,200) < (50))
  {
    fill(255,0,0)
  } 
        if (dist(mouseX,mouseY,50,250) < (50))
  {
    fill(255,255,0)
  }
        if (dist(mouseX,mouseY,50,300) < (50))
  {
    fill(255,165,0)
  }
        if (dist(mouseX,mouseY,50,350) < (50))
  {
    fill(255,0,255)
  }
        if (dist(mouseX,mouseY,50,400) < (50))
  {
    fill(139,69,19)
  }
  }
  
  
  //print(mouseX + "," + mouseY)
  if (mouseIsPressed){
  
  ellipse(mouseX, mouseY, 20, 20);
  }
  
  }