Old World Architecture

[Loto]

After digging around to find out more about the Caerthielian Empire, I ran across something that said something along the lines of the High Elf ruins (I am assuming Takish Hiz Empire) to be the white, marbelesque ruins dotting the world, while the Imperial Caerthielian ruins are dark green, and the same material as Castle Mistmoore.

I can't think of a terrible number of structures in this game with the same skin as Castle Mistmoore. Does this tidbit pan out at all?