Apps change color/get a green tint when closing them
When I close apps by swiping up, they change color a little bit. It's really noticable with dark grey colors in apps. A good app to test this on is reddit in night mode, the dark grey becomes a bit lighter with a slight green tint.
The main problem is that the app will keep this tinted color when I open it again. After using the app for a few seconds (or often by reloading something in the app), the tint disappears and it looks normal again.