Which file do I edit to swap armor appearances?

[Gordyne]

Hi.

I just want to make a simple mod to change the appearance of most medium armor like cidarian and redanian into the starting khaer morhen armor.

 

I just want need to know which bundle to extract and which file I need to edit.

 

Thanks in advance.

[who101]

use this: https://www.nexusmods.com/witcher3/mods/780