llStyle = "black";
    ctx.fillRect(0, 0, canvas.width, canvas.height);

    let halfw = canvas.width / 2,
      halfh = canvas.height / 2,
      speed = DEFAULT_SPEED;

    const randRange = (from, to) => from + Math.floor(Math.random() * to * 2);
    const generateColor = () => `hsla(45, 100%, ${randRange(85, 100)}%, 1)`;

    function Star() {
      this.posVec = [
        randRange(-halfw, halfw),
        randRange(-halfh, halfh),
        randRange(1, MAX_Z_WARP),
      ];
      this.x = this.posVec[0];