[Mica] Customizable Mica system backdrop does not respond to High Contrast correctly

[citelao]

Which version of the app?

WinUI 3 Gallery

Description

1. Turn on High Contrast
2. Launch WinUI 3 Gallery.
3. On the System Backdrop page, click Create Window with customizable Mica.

The new window will have the incorrect backdrop color:

Windows version

24H2.