Many years ago I played with the idea in Photoshop and did some images with blue or cyan lit nacelles along the inboard trenches. To me it just never looked right, but then I could easily be conditioned to seeing it the way it has always been onscreen.
If I ever get around to building it I'm considering just lighting it white with the photoetch mesh in front of it. Could be a nice. subtle effect, but I'd have to see it to decide.