title: TabBarController NavigationController with black backgroundbar
body: <p>I've placed this code my applicationDidFinishLaunching method, to get a black Navigationbar.</p>
  
  <pre><code>rootTabBarController.navigationController.navigationBar.barStyle = UIBarStyleBlackOpaque;
  rootTabBarController.moreNavigationController.navigationBar.barStyle = UIBarStyleBlackOpaque;
  </code></pre>
  
  <p>its working fine, but when the user rearranges the Icons in the editmode, i'm getting a default blue navigation bar. </p>
  
  <p>Can anyone help me to avid blue navigationbars at all ?</p>
  
  <p>btw: big thanks to the genius crowd! </p>