[tasogare]

It had, in Expression (Blend?) but not every component had a draw-like component which made things a bit awkward. Or maybe I missed something. Anyway XAML is still my favorite UI platform, it’s sad Microsoft doesn’t make any effort to make it cross platform.

[ygra]

Well, XAML itself doesn't have anything to do with UI, it's just a serialization of an object graph with hints about code generation.

There's AvaloniaUI, though, if you're looking for XAML, UI, and cross-platform.