chromium/third_party/blink/web_tests/svg/custom/fill-opacity-rgba.svg

<svg width="100px" height="100px" version="1.1" xmlns="http://www.w3.org/2000/svg">
    <rect x="20" y="20" width="60" height="60" fill="rgba(0, 255, 0, 0.5)" />
</svg>