Eventually I came to the realization that, while three gods, and a triple-goddess at that, were well and good, I’d need a larger pantheon to really have fun and flesh the world out. And, hey, I had the theme preset - colors!!
The first was Yellow, the early concepts of Black and Brown beside him there. I saw him as something of an impulsive trickster god at first, something like Peter Pan.
He’s been related to Green from the start, but their relationship has really changed with the story. What has persisted is his love for borderline-mullets.