Permission sets define the access of control panel users to different parts of the app. They are displayed in a table containing outlined badges to demarcate features of the permission. The table only shows the top level access. e.g. If a permission set has access to any of the website features, they will have a “yes” badge under “Website.” Hovering on the permission set allows you to edit with more granularity.
The edit view of an individual permission set is a form populated by checkboxes and an input field at the top to name the set. Each grouping of checkboxes has a bolded header. Checking this header will select all the checkboxes in the grouping. Only the “People” header also contains a dropdown with a qualification of which category of people this permission set allows access to.