django-templates documentation
django-templates is a library for that supports storing your appllication template names in a global registry. This allows you to override the default template names used by your application in the projects settings.py by using the DJANGO_TEMPLATES setting.
For apps to support this library, they need to register their templates in the DJANGO_TEMPLATES settings and/or providing a get_django_templates() function in a django_templates.py file in their app directory.