Its not that I'm being a douche its just what I thought. I can't help that the name is so cliche and boring to me. If you or someone else likes it thats great. I've come up with some awful names myself lol. Just look at my username
Well, maybe japanese then? Amaterasu (god of sun) and Tsukuyomi (god of moon). And if there would be a third version (like for example Emerald is for Ruby and Saphire) it could be Izanaki (the first god, creator of all and the father of Amaterasu and Tsukuyomi) or Susanoo (another sibling, god of sea and storms).
Well just saying. Imho Solar Light and Lunar Dark are good names too