title: Notifications API - Customization options?
body: <p>I'm interested in using the html5 notifications api but have a few questions:</p>
  
  <ol>
  <li>Is it possible to customize the notification background? By default it's white but I'd like to use black with a little transparency.</li>
  <li>Is it possible to make the notification clickable? Or at least click back to the app in the Chrome browser? Or are notifications purposely not clickable?</li>
  </ol>
  
  <p>Thanks</p>