ENBSeries documentation different for each version of the mod, because not all parameters are the same, this depends from game
TES 5 Skyrim
Incomplete, but i'm working on it, grab it here.
Deus Ex 3 Human Revolution
No docs of ENBSeries for this game yet.
GTA 4 documentation
I don't have my own docs for GTA 4 version.
ENBSeries old versions
Previous documentation of the mod with old enbseries.ini file format (like for GTA San Andreas) can be found here
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