modding barbarian settlement streets

I'm trying to change the road/path textures in cities for the Blue Lotus mod. I've figured out how to change settlement streets for the greek, roman, and eastern settlements, but when I try to change the barbarian streets, they don't show up.

I am looking in Data/models_buildings/TEXTURES, among the files that start with "#&" : #&PATH_DESERT_STONY.TGA, #&PATH_DOUBLE_GATEWAY_DUSTY.TGA, etc.

I thought the textures to change for barbarians are files like "#&PATH_STRAIGHT_DUSTY.TGA", but there are no visible changes when I mod the texture. I have searched the models_buildings file for other dirt paths files, but haven't found any.

I may just be screwing up somewhere, but if anyone knows the names of the files for barbarian settlement streets, please let me know.

It's very likely that file is in the 'models_building_textures.pak'. So the one you're changing isn't being used.