Thank you!

The template is at binaries/data/mods/public/art/terrains/biome-aegean-anatolian/aegean_grass_dirt_01.xml and the base (color) texture at binaries/data/mods/public/art/terrains/types/aegean_anatolia/grass_dirt_01.png  

ok, I didn't notice that they didn't take population, what if they gave like 1 or 2 population?

Could you just copy the team bonus and modify it so it only applies if it is a certain civ

don't they become more special?   We took away pop from traders as well (although I guess a trader would have a person directing the cart) But the german carts in theory can be pulled by your workers, so they dont really take up a population do they? I like the idea, I think its something we have talked about in the past, its just way above my pay grade when it comes to manipulating the files.  I really only txt edit.