{% extends shell.template_dir|default:"touchtechnology/admin/workbook"|add:"/edit.html" %}
{% comment %}
	Kept so a template that extends "touchtechnology/admin/edit.html", as it did
	before the admin had shells, still works. This page adds nothing. It is the
	edit page of the shell the admin wears: the shell in the context, which every
	page a component renders has, or Workbook, the default shell, when the
	context has none. Extend that page by its own name instead (see
	docs/upgrading.md). This file will be removed in a later release.
{% endcomment %}