westerngfx question

[rashtrakut]

Hi
I was trying to create new graphical culture using the old westerngfx (not the new one after they added new Frankish, German and Saxon cultures) as the base and editing it.

Does anyone know which file I should use for it. Is it the original graphical culture file in the base game?

 

[Bearnest]

westerngfx is defined by the file "portraits.gfx", located in: Crusader Kings II/interface/portraits/portraits.gfx
Is good practice to create a mod and copy this file, then edit it.