Function updateFavicon

scripts/test.js:318–322

()

      document.head.appendChild(favicon);

      function updateFavicon() {
        requestAnimationFrame(updateFavicon);
        let img = canvas.toDataURL();
        favicon.setAttribute("href", img);
      }

      setInterval(() => {
        context.clearRect(0, 0, canvas.width, canvas.height);