User blog comment:B214/Season 3 confirmed!!!!!!/@comment-6096197-20141208192537/@comment-1359322-20141209001707

Simple, Momo actually has black hair in the LN, but the anime changed it to white. Tsubaki has heterochromic eyes, her right eye is brown and left eye is violet, but the anime changed both her eyes to light brown.

So when i said the anime better not pull a Momo and Tsubaki, it means changing Tannin's color from purple to red.