why was everyone saying that only red and blue lightsabers should exist? the colours come from the crystals which comes in every single colour imaginable, especially if they are synth-crystals (sorry if this is to geeky for these forums but what the hell) the only reason most jedis use green and blue is because the jedi don't like using synth-crystals since it's a sithy thing to do, and sicne the primary source of natural lightsaber crystals is illium (which only produces blue and green crystals) they are moslty blue and green.
I do agree that black is stupid btw. The centre of every single lightsaber ever is white cause it's hot plasma. Nothing can be incredibly hot and be black (halle berry aside)
But whatever. rant over.