I found a site that gives you white and black lightsabers but, when you swing it its still orange and yellow :(
I think the black saber works, becuase it's a png formated file.
it doesnt lol
if you want a white lightsaber that's the same as the movie ones except... well, white, use JA+ and on the RGB selector use the color ratings R=112 B=112 G=112 that usually does it for me
I'm pretty sure you can get a black saber by lightening up the black into a really really dark dark grey (It should only be transparent if its 0,0,0 RBG right?). It should look black in-game.
The Black Saber works for JA+. To get a white saber in JA+, just use the RGB selector and make all the colors have the same value.