I know there isn't a mod for this, but maybe we can pool some resources together and try making a mod that removes the Dark Vision when using a full-set of Dark Mode armor. I find it's way too distracting and basically ruins all the fun of putting a set together.

I have 0 modding experience but I'm willing to do whatever I can to help someone make a fix for this. Currently I'm still looking in to Witcher 2 modding information so I can try doing this myself. Can anyone point me in the right direction? Thanks!

This guy has made some progress:

http://en.thewitcher.com/forum/index.php?/topic/24645-dark-mode-swords-visual-effect/page__st__20__p__731057#entry731057

It seems to have been completed. Link to the Nexus

I've yet to start collecting the dark set. What's the vision do? Is it like a permanent cat's eye?

Doesn't really do much other than greying out the colors with some fluff around the screen.