If you want to reverse the ui, you have to delete (from /.../Modules/cRPG/Ressource/):
-core_pictures.brf
-core_ui_meshes.brf
-crpg_beta_core_materials.brf
After this, open the module.ini file and remove the # at these lines:
#load_resource = uimeshes
#load_resource = user_interface_b
#load_resource = user_interface_c
#load_resource = ui_server_filter
And to finish, delete the line:
load_mod_resource = raylin_user_interface
Save, start the game and voila.
I have not tested this, don't cry if you fuck up your game installation when doing this !