Well, i used the recommendation on the official forums to kinda "combine" ReShade version 2.x (with SweetFX) and 3.x (no SweetFX), since for version 3.0 there were no shaders (.fx files) available at the time.
https://reshade.me/forum/general-discussion/2501-reshade-3-0-guide-for-newcomers-> "Use SweetFX 2.0 with ReShade 3.0 (temporary solution)"
dxgi.dll is the ReShade.dll (32bit version)
dxgi.ini needs to be edited to set correct paths
However, ReShade 3.x now has own shaders but follows a kinda weird philosophy imo. It seems you can't really use Reshade 3.x without the "ingame GUI" (Shift + F2). Furthermore all Config files will not be saved in the game folder but in the user folder instead (%appdata%\Reshade).
So at this point i see no way to get this working properly with High Stakes since this "ingame menu" is not working and there is no other way to configure ReShade 3.
Definitely needs further investigation...
Of course i can provide the merged files i used to do this screenshot. Maybe you can figure out some nice settings using SweetFX 2.0.
(Unfortunately i gotta say, apart from some Bloom i don't see any effects that could be considered an improvement.)
Greetings