chromium/third_party/blink/web_tests/external/wpt/css/compositing/background-blending/background-blend-mode-plus-lighter.html

<!DOCTYPE html>
<title>background-blend-mode: plus-lighter test</title>
<link rel="author" title="Jake Archibald" href="mailto:[email protected]">
<link rel="help" href="https://drafts.fxtf.org/compositing-2/#background-blend-mode">
<link rel="match" href="reference/background-blend-mode-plus-lighter-ref.html">
<meta name="fuzzy" content="maxDifference=0-1;totalPixels=0-4294967295">
<style>
  .test {
    width: 100px;
    height: 100px;
    background-blend-mode: plus-lighter;
  }
</style>
<script type="module">
  import { tests } from '../support/plus-lighter.js';
  import { toCSSColor } from '../support/utils.js';

  // Create a solid color CSS image.
  const colorImage = (pixel) =>
    `linear-gradient(to right, ${toCSSColor(pixel)}, ${toCSSColor(pixel)})`;

  const createBackgrounds = (colors) => colors
    // Backgrounds are top first
    .slice().reverse()
    .map((color) => colorImage(color))
    .join(', ');

  for (const colors of tests) {
    document.body.insertAdjacentHTML('beforeend', `
      <div class="test" style="background-image: ${createBackgrounds(colors)}"></div>
    `);
  }
</script>