How about changing the color of tracer rounds also. (Will Smith- Independence Day) " I Know you didn't just fire that green cheet at me!"
It's really not a difficult or unreasonable wish. Just a color table for the stars. A text file with a non-texture RGB value (or whatever) for each star, or a small index of values for each star to be categorized into. (e.g. 3 or 4 shades/hues of blue, orange, red.) A tiny weight in game resources for lots of added immersion.
And no, tracers weren't all yellow either. Same thing here. Unexpensive feature (5 colors total - red, white, blue, yellow and green) for more added immersion. By unexpensive I mean it only costs those 5 extra values, instead of e.g. a wish for pixel shaded tracers that actually glow.