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chromium/third_party/blink/web_tests/external/wpt/css/css-ui/accent-color-radio-checked-001.html 

<!DOCTYPE html>
<title>Accent color changes colors of an checked radio</title>
<link rel="author" href="mailto:[email protected]">
<link rel="help" href="https://drafts.csswg.org/css-ui-4/#widget-accent">
<link rel="mismatch" href="accent-color-radio-checked-001-notref.html">

<input type=radio checked style="accent-color: red">