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chromium/third_party/blink/web_tests/dark-mode/images/svg.html 

<!DOCTYPE html>
<img src="resources/svg-image.svg" style="display: block;" />
</div>
<svg width="100px" height="100px" xmlns="http://www.w3.org/2000/svg" style="display: block;">
    <rect width="100" height="100" fill="green" />
</svg>
<div style="background: rgba(0,0,0,0.8); width: 100px; height: 100px;">
    <img width="50px" height="50px" src="data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg'><rect width='30' height='30' fill='rgb(25,25,254)'></rect></svg>"/>
</div>