title: How to customize MCBrowserViewController in swift for macOS?
body: <p>Currently I browse a session using the following:</p>
  <pre><code>let mcBrowser = MCBrowserViewController(serviceType: &quot;service&quot;, session: p2pSession)
      
  mcBrowser.delegate = self
  mcBrowser.maximumNumberOfPeers = 1
  listVC.presentAsModalWindow(mcBrowser)
  </code></pre>
  <p>Which produces a view:</p>
  <p><a href="https://i.stack.imgur.com/IjQ6R.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/IjQ6R.png" alt="enter image description here" /></a></p>
  <p>I want to know if there's way to customize the appearance of the view controller before it's presented? For instance change the back ground of the list view to be dark instead of white. Or perhaps add an additional button to the window.</p>