function setup() {

  pixelDensity(1); // 

  background(0, 102, 204);

}

​

let redValue = 0; 

​

function draw() {

​

  loadPixels();

  for (let i = 0; i < width * height * 4 ; i+=4) { // forms incrementation for variables underneath it. we use 4 to refer to 

    pixels[i] = redValue;

  } 

  updatePixels();

​

  redValue = (redValue + 1 ) %255 // %255 means it will never get bigger than 255, useful for color values (refer to console)

  print(redValue);

  updatePixels(); // restarts so canvas goes back to blue

​

}