How to change color of navigation bar of CNContactPickerViewController?

I want to change color of navigation bar shows on CNContactPickerViewController.

I have tried the following code, but it doesn't work.

let contactPicker = CNContactPickerViewController()
//  let searchController = UISearchController()
contactPicker.delegate = self
contactPicker.modalPresentationStyle = .fullScreen
//        UISearchBar.appearance().text = "SEARCH".localized
//        contactPicker.navigationController?.isNavigationBarHidden = true
UINavigationBar.appearance().isTranslucent = false
UINavigationBar.appearance().barTintColor = .white
contactPicker.displayedPropertyKeys =
[CNContactPhoneNumbersKey, CNContactEmailAddressesKey]
contactPicker.predicateForEnablingContact = NSPredicate(format: "emailAddresses.@count > 0 || phoneNumbers.@count > 0")

present(contactPicker, animated: true)

Solution

If you want to change the color of the text in navigationBar just add these lines to willConnectTo method inside SceneDelegate file:

 UINavigationBar.appearance().isTranslucent            = false
 UINavigationBar.appearance().barTintColor             = .orange
 UINavigationBar.appearance().tintColor                = .yellow
 UINavigationBar.appearance().titleTextAttributes      = [NSAttributedString.Key.foregroundColor: UIColor.purple]
 UINavigationBar.appearance().largeTitleTextAttributes = [NSAttributedString.Key.foregroundColor: UIColor.purple]