Improves graphics detail of entire game without performance loss. Unzip in bin folder to install and use 'scroll lock' to switch on/off. Don't worry if mainmenu looks washed out, it solves automatically.
If you are an expert you can experiment with other reshade effects, but I can tell you I have already tried many and only adaptive sharpening seems to have a meaningful impact on this game. AF and AA work much more efficiently from the game's own settings and HDR and vibrance are pointless as H5 is already extremely colorful by default.