Types
Partial types are allow you to define custom fields and layout for partials of this type.
Partial Layouts
The type's partial layout is what determines how the partial will render.
Defining Partial Layouts
When defining the partial layout the partial is available to access field values.
In the simple example below content is the field slug of the WYSIWYG field assigned to this partial's type.
<h1>{{ partial.title }}</1h>
{{ partial.custom_field }}