• The theme structure

The Theme Structure

Data is scoped to each level and at each level passing down data to the lower levels. As a Page template passes down the sidebar sections and then those pass down to node. A content type can have its own page template which can determine what block sections are used and how they are layered out.

When editing the content of the page then you would need to edit a custom node template.

I found that once you learn how to edit the template you can then edit the admin template which makes the

{% block header %}
  {# header block #}
{% endblock %}

{% block sidebar %}
  {# sidebar block #}
{% endblock %}

{% block content %}
  {# content block #}
{% endblock %}

{% block footer %}
  {# footer block #}
{% endblock %}

the naming conventions