Request: Arbitrary view modifiers

[blsage]

It seems that the navigation transitions only support 3 fundamental types of transitions (as identified in AnimatorTransientViewProperties):

1. alpha: CGFloat
2. transform: CATransform3D
3. zPosition: CGFloat

I've tried to understand the inner-workings of the package, but it seems to be above my comprehension level. Would it be possible to add a closure for arbitrary view modifiers based on the progression of the transition? This would allow for much more customizability over creating navigation transitions.

Also, it would allow developers to write their transitions in native SwiftUI. Perhaps View/scrollTransition(_:axis:transition:) could be a model for the API.

I, specifically, am looking to create a blur+scale navigation transition, but I don't think the blur part is currently possible.