There appears to be a bug with how the screenshots are rendered or how they are saved. While viewing the game, everything looks fine, but I took a bunch of screenshots and when I looked at them they all had a very heavy vignette. This happens with and without filters on.
Screenshot with Filter:

Screenshot without Filert:

Gameview:

I am on macOS Catalina 10.15.7 on a 16inch MacBook Pro, the version of the game is V5
