[iOS/SWIFT]NavigationBar Large Title背景色の指定

    fileprivate func setupNavBar() {
        navigationItem.title = "Top Headlines"
        let navBarAppearance = UINavigationBarAppearance()
        navBarAppearance.titleTextAttributes = [NSAttributedString.Key.foregroundColor: UIColor.white]
        navBarAppearance.largeTitleTextAttributes = [NSAttributedString.Key.foregroundColor: UIColor.white]
        navBarAppearance.backgroundColor = UIColor(displayP3Red: 47/255, green: 54/255, blue: 64/255, alpha: 1)
        
        navigationController?.navigationBar.prefersLargeTitles = true
        navigationController?.navigationBar.isTranslucent = false
        navigationController?.navigationBar.standardAppearance = navBarAppearance
        navigationController?.navigationBar.scrollEdgeAppearance = navBarAppearance
    }