[Request] Fluent materials

[trympet]

Platform

• iOS
• macOS

Describe the feature that you would like added

This might be out of scope, but I'd really like to see fluent material backdrops / content views.
Avalonia already has a working implementation / approximation of acrylic blur on macOS.

From what I can tell, it should be possible to implement a 1:1 replica of acrylic blur in winui using Core Graphics, since you can blend with the host backdrop (?).