This set of textures contains a files with DDS format, which replace the main interface of the game.

The files that are responsible for the loading screen:
loadscreen.dds, loadscreen2.dds

The files that are responsible for main menu:
main_menu_nord.dds, escape_menu.dds

If you are using a mod other than native, just do not copy these files.
The interface will change and the menu and loading screen will remain the same.