[Question/Feature Request] Use This Effect on a Widget?

[seanocali]

Instead of applying the effect on the app's window, can it be used as the background color of a Container?

[Adrian-Samoticha]

It can be on macOS using the TransparentMacOSSidebar, TransparentMacOSBottomBar, or VisualEffectSubviewContainer widgets. There is no way to do so on Linux or Windows.

[alexmercerind]

You can "clip out" a section from your widget tree & remove Flutter paint from that region. It will make Flutter use window's background in that region. Do it using CustomPainter, just use BlendMode.clear. See:

https://github.com/alexmercerind/flutter_native_view/blob/master/lib/src/widgets.dart#L145-L160

This is only solution for Windows & Linux.