Hi all!
Due to some wonderings (and some negative reviews ːsteamsadː ) from new players, here is a small statement:
If you go to your SteamApps\common\Dustbowl and open "winsetup" there you can change pixel filter options, additional sound options and Full Screen mode.
Sorry about this, I know it's not obvious, but it's related to the engine we used.
I do hope that helps :)
HF!