They don't literally reflect their creators, the creators custom make them to make them personal items. They are one of a kind items, but they never change in appearance. And you can't project darkness! Darkness occurs when light is blocked or absorbed.
lightsabers also reflect their creators. your guy could be so bad that it no longer admits light. it produces darkness. which actually makes more sense if you think about it than a sith having a LIGHT saber. they should have a DARK saber
Bronze, Silver, Gold, Magenta, Pink, Crimson, White and Teal were also possible, I'm pretty sure.... They could probably make a crystal of any colour that isn't black....
Really? Another reason to get it. I saw it for $25 in Dick Smith Electornics today (australian dollars of course-btw Im Australian!) and I was so surprised I nearly bought it, but I couldnt be bothered.