New support for styling Xamarin.Forms apps with CSS may be controversial, but Greg Shackles thinks CSS is a powerful (and frequently maligned) solution to the problem of styling native mobile ...

You also need to add your own navigation bar controls, though unlike Xamarin Forms, a WinUI navigation can pass parameters to the new page.

Here's an examination of the new features in the Xamarin.Forms 4.0 major release, drawing on a new podcast, video, blogs posts and Microsoft documentation.