Darth Venal said:
Well casual viewers coped for 30 years with different coloured light sabres, so I'm not sure we need to go dumbing it down now. If you want to explain things as ostensibly irrelevant as laser colour, where would you stop?
Sometimes implying things can have just as much impact on a viewer and their imagination as filling in each and every dot.
Maybe someone needs to just make a Star Wars for Dummies Edition and be done with it already.