I was thinking... Imagine you were fighting a battle in deep space. Now imagine again a battle fairly close to a star. The lighting conditions will definately be different. For example, in deep space, there would be little to no ambient lighting. Likewise, if you are close to a star, ambient lighting will be much higher than normal. I was also thinking, if there were two stars in the area, the lighting would be a mixture of the two colors. What I am thinking is to have an RGB valueset so that the color can be defined by the level designer. For example, if I wanted to be far away from a blue sun I could say 40-40-60. I would imagine it's easy to do, as you already have it implemented for the color of the system's star. 50-50-50 would be considered normal, 0-0-0 would be total blackness, 100-100-100 would be total whiteness. Obviously, the creator shouldn't go below 20 or above 80. What do you think? It could be very usefull in nebula missions.