Bubble,
If you've seen any of my night SS's, I prefer dark nights with no moon and more light when moon is out. I find adding more moonlight gives a better look and realistic play, rather than adjusting all the colors, If also makes moon attacks easier. I've got several options, but my post 40 probably is the better looking ones. If you look, you can see a lot of light with moon on the horizon, but opposite horizon still dark. Probably would still look better with colors a lil darker.
http://www.subsim.com/radioroom/showthread.php?t=196108