createCanvas(500, 500);

  background("silver");

  c_start = color("blue");

  c_end = color("silver");

  count = 200

  for (let i = 0; i < count; i++) {

    mid_c = lerpColor(c_start, c_end, i / count);

    stroke(mid_c);

    noFill()

    circle(width / 2, height / 2, i);

  }

}

​

function draw() {}

​