I gave the nav map a reddish hue and a white splotch to have the appearance of a lamp hanging over in the red command room. Realism bro!
Version 1 has more red light than white, the source of light is further away.
http://www.subsim.com/radioroom/down...o=file&id=5444
Version 2 has more white light than red as if the source of light is overhead.
http://www.subsim.com/radioroom/down...o=file&id=5445
For some reason I cannot get these filters to turn off in the day during historical missions, but seem to work just fine in career. It's free for all to manipulate, so maybe you can get it to work.