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I'll tell you right now, there's nothing more boring than a black and white list. Without any UI design, the apps you build will look amateur regardless of how good the technology is. Today's lesson will show you a few easy techniques that will make your application "pop". Remember that your portfolio of projects should look professional, this means that you will need to clean up all of your screens to make them as presentable as possible before you submit them.
### Xcode 11.3+ SceneDelegate Update 4/20/2020 As most of you are probably aware by now, starting with Xcode 11.3, Single View Application projects are now created with a SceneDelegate file. This file is used to manange the scenes in your application and thus also contains the entry point of your app. Because of this change, we'll need to go about setting up our project using **SceneDelegate** instead of **AppDelegate**. More specifically, you want to leave **AppDelegate** alone and instead make the following changes in **SceneDelegate**: ```swift class SceneDelegate: UIResponder, UIWindowSceneDelegate { var window: UIWindow? func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) { if let windowScene = scene as? UIWindowScene { let window = UIWindow(windowScene: windowScene) window.rootViewController = MainController() // Place your root view controller here self.window = window window.makeKeyAndVisible() } } } ```

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