title: white or light ASAuthorizationAppleIDButton "Sign in with Apple" button - Swift
body: <p>I am implementing ASAuthorizationAppleIDButton - as per Apple's request - but unfortunately my login background is dark and I can't find how to change the button color to a light or white button like the ones Apple show in many of their examples?</p>
  
  <p>This is what I have:</p>
  
  <pre><code>let appleButton = ASAuthorizationAppleIDButton()
  
  override func viewDidLoad() {
      super.viewDidLoad()       
      setAppleButtonStyle()
  }
  
  func setAppleButtonStyle() {
      if #available(iOS 13.0, *) {
          appleButton.translatesAutoresizingMaskIntoConstraints = false
  
          view.addSubview(appleButton)
          NSLayoutConstraint.activate([
              appleButton.centerYAnchor.constraint(equalTo: facebookLoginView.centerYAnchor, constant: -70),
              appleButton.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 16),
              appleButton.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -16),
              appleButton.heightAnchor.constraint(equalToConstant: 50)
          ])
      } else {
          //Do Nothing
      }
  
  }
  </code></pre>