nit - OpenProcessing

mySketch
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let w = 400;
let h = 400;
let r = [];
let g = [];
let b = [];
let c;
let gridsize = 40;
let chart = 0;
​
function setup() {
  cnv = createCanvas(w, h);
  gfx = createGraphics(w/2, h/2);
  
  r = [random(0, 256), random(0, 256), random(0, 256), random(0, 256)];
  g = [random(0, 256), random(0, 256), random(0, 256), random(0, 256)];
  b = [random(0, 256), random(0, 256), random(0, 256), random(0, 256)];
  
  background(250, 248, 230);
  gfx.stroke(80);
  gfx.fill(250, 248, 230);
  //noSmooth();
  //gfx.noFill();
  imageMode(CENTER);
  ellipseMode(CENTER);
  rectMode(CENTER);
  
  gfx.strokeWeight(30);
  
  for (let i=0; i<floor(random(2,6)); i++){
    gfx.push();
    gfx.translate(random(0,400), random(0,400));
    gfx.rotate(random(0, TWO_PI));
    c = floor(random(4));
    gfx.stroke(r[c], g[c], b[c]);
    gfx.ellipse(0, 0, random(0,400), random(0,400));
    gfx.pop();
  }
  
  for (let i=0; i<floor(random(0,2)); i++){
    gfx.push();
    gfx.translate(random(0,400), random(0,400));
    gfx.rotate(random(0, TWO_PI));
    c = floor(random(4));
    gfx.stroke(r[c], g[c], b[c]);
    gfx.rect(0, 0, random(0,400), random(0,400));
    gfx.pop();
  }
  
  for (let i=0; i<floor(random(2,6)); i++){
    gfx.push();
    gfx.translate(random(0,400), random(0,400));
    gfx.rotate(random(0, TWO_PI));
    c = floor(random(4));
    gfx.stroke(r[c], g[c], b[c]);
    gfx.line(random(-200,200), random(-200,200), random(0,200), random(0,200));
    gfx.pop();
  }
  
}
​
function mousePressed() {
  chart = !chart;
}
​
function draw() {
  background(250, 248, 230);
  image(gfx, width*0.25, height*0.25, 200, 200);
  
  push();
  translate(width*0.75, height*0.25);
  scale(-1,1);
  image(gfx, 0, 0, 200, 200);
  pop();
  
  push();
  translate(width*0.25, height*0.75);
  //rotate(PI);
  scale(1,-1);
  image(gfx, 0, 0, 200, 200);
  pop();
  
  push();
  translate(width*0.75, height*0.75);
  scale(-1,-1);
  image(gfx, 0, 0, 200, 200);
  pop();
  
  //test = cnv.resize(gridsize, gridsize);
  //image(test, 0, 0);
  
  if (chart) {
    for (let y = gridsize/2; y < height; y += gridsize) {
      for (let x = gridsize/2; x < width; x += gridsize) {
        fill(get(x, y));
        strokeWeight(1);
        stroke(100,100,100,40);
        rect(x, y, gridsize, gridsize);
      }
    }
  }
}