I was browsing through Wookieepedia -- as I am wont to do ;-) -- and I came upon this image:
This is from the Handbook 3: Dark Empire. While I don't own a physical copy of this book, I do have a scanned copy sitting on my hard drive, and in it the image above looks like this:
So, obviously there are major differences between the two colour-wise; the top image is blue-tinted with the lightsaber being red, while the bottom is more green-tinted with the lightsaber being orange-yellow.
As anyone can probably guess, I lean towards the greener version being the "original version", with the blue version being an altered version, made by some Wookieepedian to conform to the "bad guys only wield red lightsabers" rule established after AOTC was released. Of course, I don't know that this is the case.
Basically, I'm asking anyone who happens to own this book to tell me which version of the picture above is book-accurate.
My screenplay index.
Frink gave the correct response. The rest of you fail reading comprehension.