As I've been making a build for Thranduil's Halls, I've noticed something that honestly surprised me: there's no mossy stone. Sure, we have the vanilla mossy cobblestone, as well as mossy stone bricks, and mossy variants to different factions' bricks. But what about all other stone/rocks?
I suggest the addition of adding a Mossy Stone, Mossy Gondor Rock, Mossy Luigon, etc., as it will allow for more building potential. Bringing it back to my building of Thranduil's Halls, it is most certainly an overgrown structure. It is not something that has clean cut stone, and adding mossy cobblestone is a total eye sore. However mossy stone would act as a perfect transition! These stone/rock variants would simply open up more doors for building more structures, and logically should already have been implemented!