You mean like this one? i dont know much but
you might find a use for this i guess
https://forum.plutonium.pw/topic/19406/release-zm-iw-perk-shaders-for-bo2
i dont think it might be possible but damn that would be the best thing if they could pull it off
giving the old games a new fresh paint and look to them
your config has been moved to t4/players/$$$ folder, if u want bring your old config back just direct plutonium.cfg and plutonium_mp.cfg to $$$ but rename them to config.cfg and config_mp.cfg so get rid off the files named config.cfg and config_mp.cfg just replace them