chromium/chrome/test/data/banners/no-sw-with-colors.html

<html>
  <head>
    <title>Manifest test app with colors and no service worker</title>
    <link rel="manifest" href="no-sw-with-colors.json">
    <meta id="no-sw-with-colors" name="no-sw-with-colors" content="yellow">
  </head>
  <body>
    Manifest test app with colors and no service worker.
  </body>
</html>