TheBoost said:

At this point it just becomes a game of 'make up a random explanation."

There is not a single line of dialog or plot point in either trilogy to give the impression that lightsaber color is particuarly important, save the implication that baddies have red (although that's not important enough for Anakin/Vader to make a point of trading his blue saber in).

Consequently, one can say anything they want about lightsaber colors, and any arguments carries just about the same weight as any other, since it's all based on nothing.

My understanding was it was meant to be a simple blue/good red/bad dynamic in the OT, but they needed a green lightsaber to show up in exterior fights against the sky in ROTJ, and in the PT Lucas just didn't give a damn, and let Jackson have a purple lightsaber for no reason, senind a million fanboys into seizures to come up with various explanations.

I suppose that is the best way to approach it. It doesn't add to the story really. Lord, it's so easy to become GL about all of this, trying to explain what doesn't need explaining.

Can someone post the link where all of the mock ups have been saved? I can't remember who was doing it.