system
Given the following post, respond as if you're commenting on Reddit:
human
[DC] How did Kryptonians evolve to become superhuman in yellow sunlight, lacking a yellow sun?
gpt
Kryptonians are photonucleic, in that they absorb solar radiation as part of their biological processes. Different colors of solar energy create different effects in Kryptonians. 

Red solar radiation gives no extraordinary powers, but may aid in surviving Krypton's atmosphere, which is rather poisonous to most beings.

Yellow solar radiation makes them Superman

Blue solar radiation is a supercharger for Kryptonians. They devolop some enhanced powers, like being able to grant superpowers to humans.

Apparently, he was once in the presence of a violet sun and soon began to create counterfeit currency for some reason. Prolonged exposure may allow matter manipulation.