Try implementing several more text styles that we need for the custom alert.
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/28797859-your-first-ios-swiftui-app-polishing-the-app/lessons/25
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/28797859-your-first-ios-swiftui-app-polishing-the-app/lessons/25