My Sketch - OpenProcessing

mySketch
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function setup() {
  createCanvas(windowWidth, windowHeight);
}
​
function draw() {
  background(255);
  strokeWeight(3);
  for(let x = 0; x < width; x = x + 20){
    if(x <= width/2){
    stroke(map(x, 0, width, 0, 255), 64, 52, x);
    }
    else{
      stroke(235, map(x, 0, width, 0, 255), 52, x);
    }
    line(mouseX, mouseY, x, 0);
    if(x <= width/2){
    stroke(235, map(x, 0, width, 0, 255), 52, x);
    }
    else{
      stroke(128, 52, map(x, 0, width, 0, 255), x);
    }
    line(mouseX, mouseY, x, height);
  }
}