title: How can I style the extension Sidebar?
body: <p>I have the following sidebar in my extension but I want change the look and feel. How can I do this?</p>
  
  <pre><code>var sidebar = new appAPI.sidebar({
    position: 'right',
    url: 'http://news.yahoo.com',
    html: 'Some Html',
    title: {
      content: 'Yahoo News',
      close: true
    },
    opacity: 1.0,
    width: '300px',
    height: '100%',
    preloader: true,
    sticky: true,
    slide: 150,
    openAction: ['click', 'dblclick'],
    closeAction: 'click',
    theme: 'default',
    scrollbars: false,
    openOnInstall: true
  </code></pre>