chromium/third_party/blink/web_tests/paint/invalidation/caret-color-inline.html

<!DOCTYPE html>
Tests color of caret changes with the 'color' style. Passes if caret is always in the came color as the text.
<div id="div" contenteditable="true">
  <span id="span" style="color: red; font-size: 50px">SAMPLE</span>
</div>
<script src="../../resources/run-after-layout-and-paint.js"></script>
<script>
div.focus();
runAfterLayoutAndPaint(function() {
  span.style.color = 'green';
}, true);
</script>