title: Custom navigation bar in Swift 3
body: <p>I have a view controller with a special font and a shadow image on it's navigation bar. However, when I segue to a different view controller, the new view controller mimics the navigation bar qualities of the view controller it was segued from. How do I get rid of this quality?</p>
  
  <pre><code>self.navigationController?.navigationBar.titleTextAttributes = [ NSFontAttributeName: UIFont(name: "AmericanTypewriter-Bold", size: 24.0)!, NSForegroundColorAttributeName: UIColor.white]
          self.navigationController?.navigationBar.isTranslucent = false
  
          self.navigationController?.navigationBar.shadowImage = UIImage(named: "shadow")
  </code></pre>