Kaer Maga's Ring Color

[Varthanna]

So, I could have sworn that the Ring that makes up Kaer Maga was made of black stone, but then I saw it mentioned in flavor text that it was white... which is it? Am I misremembering that it had been black?
I ask because I am painting a model of the city.

[Cpt_kirstov]

City of Strangers P7 "From a distance. Kaer Maga appears to be an enormous outcropping of gleaming, white stone".

I think the blackness you remember is the description of the halflight path tunnel system in one of the first 4 pathfinder journals

[James Sutter]

Yup--Kaer Maga is white. It kinda looks like the Pentagon.