chromium/third_party/blink/web_tests/external/wpt/svg/text/reftests/opacity-ref.svg

<svg xmlns="http://www.w3.org/2000/svg">
  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
  <style>
    text {
      font-size: 50px;
    }
  </style>
  <defs>
    <path id="path" d="M100, 120 300, 120"/>
  </defs>
  <text x="100" y="60" opacity="0.5">
    <tspan>tspan</tspan>
  </text>
  <text opacity="0.5">
    <textPath href="#path">textPath</textPath>
  </text>
  <text x="100" y="180" opacity="0.5">
    <a href="https://www.w3.org"><tspan>link</tspan></a>
  </text>
  <text x="100" y="240" opacity="0.5">
    <a href="https://www.w3.org"><tspan>another link</tspan></a>
  </text>
  <text x="100" y="300" opacity="0.25" font-family="Ahem">
    <tspan>XXXX</tspan>
  </text>
</svg>