The following updates have been implemented:
Fixed: Murky Achievement
Fixed: Steam Overlay + F12 Screenshot problem.
Added: Selectable stage theme (Grassy, Muddy, Snowy or Random) You can find it at the bottom of the screen on the MODE SELECT.
Big Thanks to Antoine G. @__sleepingpanda for help with Steam Overlay problem and Baltus for bugs report.
Happy gaming! :)
@FobTi