chromium/src/third_party/blink/web_tests/svg/custom/color-stop-traversal.svg

<svg width="300" height="300" version="1.1" xmlns="http://www.w3.org/2000/svg">
  <defs>
      <linearGradient id="gradient1">
        <!-- color stop traversal should not reach into the group below -->
        <g>
          <stop offset="0%"   stop-color="red"/>
          <stop offset="100%" stop-color="red"/>
        </g>
      </linearGradient>
      <linearGradient id="gradient2">
        <!-- color stop traversal should ignore the group below -->
        <g/>
        <stop offset="0%"   stop-color="green"/>
        <stop offset="100%" stop-color="green"/>
      </linearGradient>
  </defs>

  <rect width="100" height="100" fill="green"/>
  <rect width="100" height="100" fill="url(#gradient1)"/>

  <rect x="150" width="100" height="100" fill="red"/>
  <rect x="150" width="100" height="100" fill="url(#gradient2)"/>
</svg>