];
    await anim.ready;
    assert_equals(getComputedStyle(target).stroke, 'rgb(0, 0, 254)');
    scroller.scrollTop =
        0.5*(scroller.scrollHeight - scroller.clientHeight);
    await waitForNextFrame();
    assert_equals(getComputedStyle(target).stroke, 'rgb(0, 64, 127)');
  }, 'View timeline attached to SVG graphics element');
</script>
</html>
