<html>
<head>
<style>
/* List item should be a 1em by 1em round gradient bullet. */
ul { list-style-image: radial-gradient(closest-side, red, blue 99%, transparent 100%); }
</style>
</head>
<body>
<ul>
<li>&nbsp;
<li>&nbsp;
<li>&nbsp;
</ul>

<script>
if (window.testRunner) {
  var dumpPixels = true;
  testRunner.dumpAsText(dumpPixels);
}
</script>