doubleofive said:

Smithers said:
At the end of Vader #4 you see the next cover which features... *gasp* a yellow lightsaber?! For some reason I am not fond of the idea that there are tons of lightsaber colours, it's already bad enough that we have a purple one and a black one in the canon for that matter. What do you guys think of this?

Ahsoka has a yellow lightsaber and her cartoon is canon already.

It was a yellow-green actually. Bona fide yellow sabers were wielded by the Jedi Temple guards, though.