Yup. On Traipah, in the Yahgahn culture white is a color of death (for bones and sometimes skin of corpses) and black is a color of creation because from their perspective the world came from the black of the heavens. And while the Yahgahn culture would interpret green as a good color, cultures of the other two species native to Traipah would not so much (or at least certain shades wouldn't be), because they're carnivores and green isn't a good color for meat to be. Also the Duenicallo are a furred species as fastidious as cats and would generally consider algae growing in their fur to be a bad thing.

Oh, and it would be funny to watch Christian missionaries try to convert the people of Traipah in general when Christianity is so full of plot holes, contradictions, and all sorts of nonsense, it would be most hilarious watching them trying to speak to Duenicallo of the Gosgolot culture; one mistranslation of "son" to the Gosgolot word for "sun" and all hell breaks loose, because that culture fears the sun as an angry god-monster. And good luck trying to sell them on the idea of worshiping an all-powerful God when their only concept of all-powerful gods is the kind of thing where they'd think Lovecraft was adorable. "A blind idiot god? He'd get eaten alive in our pantheon."