In your projects with Wagtail, you may wish to replace elements such as the Wagtail logo within the admin interface with your own branding. This can be done through Django's template inheritance mechanism, along with the `django-overextends <https://github.com/stephenmcd/django-overextends>`_ package.
Install ``django-overextends`` with ``pip install django-overextends`` (or add ``django-overextends`` to your project's requirements file), and add ``'overextends'`` to your project's ``INSTALLED_APPS``. You now need to create a ``templates/wagtailadmin/`` folder within one of your apps - this may be an existing one, or a new one created for this purpose, for example, ``dashboard``. This app must be registered in ``INSTALLED_APPS`` before ``wagtail.wagtailadmin``::
To replace the welcome message on the dashboard, create a template file ``dashboard/templates/wagtailadmin/home.html`` that overrides the block ``branding_welcome``::
{% overextends "wagtailadmin/home.html" %}
{% block branding_welcome %}Welcome to Frank's Site{% endblock %}