I know it was qui gons, I said he usually used a blue one and never made a green one, but used a green one to kill Maul. Sure, it may not have been his, but he used it, didn't he? Henceforth, he has used a green one. And I don't remember what color his saber was in Ep II during the big battle on Geonosis. I'd assume is was blue, but since some random jedi threw his a saber it could have been something else.