Didn't find it submitted in tracker, maybe im just blind.

What i'm requestiog is option (video option) to change ingame contrast. Many of map makers will welcome it too.

Here are some examples i made, how it looks like with bit more contrast..

http://gamesbase.cz/page/9/Arma3-contrast

Screenshots are full hd GIFs so colors are not exactly same, but still looks way better