The colour thing is even more daft in my opinion.

VADER'S THOUGHT BUBBLE : "Mmm a green blade...nobody thought of that one before...he must be stronger than all those other Jedi I killed. This is going to be a tough cookie to crack, I'll just get him in a corner and tell him that Princess he's been snogging is his sister, that'll do it! I mean, it's not likely to be true but he seems the kind of kid that'll fall for that sort of thing...still green blade. Green, why did it have to be Green?"