It's total bs to change source material and make House Velaryon all black just in the name of diversity. The book clearly describes what the Velaryans looked like. If you don't like the material find another book to create a show from. The quote that the creaters gave saying "It was very important for Miguel and I to create a show that was not another bunch of white people on the screen" is total garbage. Imagine if that statement was reversed and applied to a Tyler Perry show. This PC fake virtue culture is killing art these days. 20 yrs ago movies and TV shows had much more authentic substance.