The thing about the lightsaber colors in SP probably has something to do with the fact that it's Raven making the game, and not LucasArts itself. The Star Wars liscense of what is allowable in SW games may have also changed since the prequels came out, so they decided the "movie colors only" rule applied to Single Player.
Kinda stupid, but I guess that's how it is.
Great FAQ, as usual. ; )
Time to plug my strategy site... (see sig link)