Texture Replacement

[Jewtwo]

Hi, I'm totally new with texture replacement, I'm just using PPSSPP to play MHFU, and I searched if a texture was available to swap the minimap on the top right corner when you are in game to show all emplacements of resources. As I searched, I saw that sadly it was unavailable, so I decided to do it myself. I read 2, 3 tutorials to create my own texture and it worked but, when I change location, like going from 1 to 2, the texture pack disapears :/
So my question is, do you know if it's possible to change the texture of the map for everytime it's shown in game ?
Thank you in advance.

Edit : Nevermind, I found how to do it by changing the textures.ini, thanks anyway !