Well, she's a goddess of the sun mostly because of her people's belief in a sun goddess and fire really more comes from... well... fire being a logical thing to get from being a sun goddess.

Her abilities don't directly reflect the sun mostly because, um... well, I'm trying very hard to keep her from being broken so I'm starting off with the more "fire" stuff. Her shield is meant to be related to the sun given it's sort of like a magnifying glass, at least.