Tonguez
A suffusion of yellow
wait it was a war between elf blonds and elves with jet black hair, that was the moral difference?
Czenobog in American Gods gives a speech about how he was called the black god due to his black hair and associated with evil while his brother Belobog has blonde hair is the white god associated with good - Gaiman uses it masterfully to discuss the nature of good, evil, duality and racism.
But importantly it exemplified the deeper roots of brunette v blonde symbolism in European folklore which Yaarel has so insightfully expanded on