Actually I was searching for an alternate program to textmod but for opengl based games. I only found its successor uMod (
https://code.google.com/archive/p/texmod/downloads) which only works with directx9 games. However it does dump all textures of FF7 (FF8 too maybe its a better alternative to Tonberry?) I was able to replace the menu avatar and ...
parts of the BG:
Still I get too much unneeded images maybe some one knows how to setup the filter so that the program doesn't dump so much.