All you need to do is find the ZenlessZoneZero.exe and ZenlessZoneZero_Data folder and rename them to GenshinImpact.exe and GenshinImpact_Data.
For enabling mods at the same time open the 3Dmigoto d3dx.ini and search for ".exe" and find Target = ZenlessZoneZero.exe and swap it to GenshinImpact.exe
I have two settings that I figured out for ZZZ
Sharpen + 20/20
Colour 90, 10, 0, 30 or 50
Details 0, 100, -80, 0
Brightness/contrast 0, 34,100, 80, 10
Or
Sharpen + 20/20
Colour 90, 10, 0, 30 or 50
Details 0, 100, -90, 0
Brightness/contrast 14, 35,100, 80, -14
The first is quite muted and has a very similar style to my usual settings and the second one maximises the look of all the weapon and skill effects ingame (specifically in Combat).
The UI being so dark and so many dark areas like the shop filters don't quite work as well as they do in Genshin/HSR. I really need to create a mod where the UI is much brighter and some areas a bit brighter.