Determines whether the current admin page is generated by a plugin.

Determines whether the query is for an existing post type archive page.

Whether the current request is for a user admin screen.

Outputs the footer for the login page.

Displays post format form elements.

Display or retrieve title for a post type archive.

Remove custom background support.

Remove image header support.

Removes all visual editor stylesheets.

Removes a top-level admin menu.