epth - 1);
      forward(-l);
      left(30);
      forward(l);
      tree(depth - 1);
      forward(-l);
      right(60);
      forward(l);
      tree(depth - 1);
      forward(-l);
      left(30);
    }

    tree(8);

    {
      const width = 512,
        height = 512;
      const panel = document.createElement('div');
      panel.style.width = `${width}px`;
      panel.style.height = `${height}px`;
      panel.style.position = 'relative';
      document.body.appendChild(panel);

      render((commands) 