Function: Adds the “Customize” link to the Toolbar.

Function: Add edit comments link with awaiting moderation count bubble.

Function: Add appearance submenu items to the “Site Name” menu.

Function: Add the WordPress logo menu.

Function: Provide an update link if theme/plugin/core updates are available.

Function: Add the sidebar toggle button.

Function: Add search form.

Function: Add the “My Account” item.

Function: Add secondary menus.

Function: Add the “My Account” submenu items.

Function: Style and scripts for the admin bar.

Function: Add the “Site Name” menu.

Function: Default admin bar callback.

Function: Add the “My Sites/[Site Name]” menu and all submenus.

Function: Sets the display status of the admin bar.

Function: Provide a shortlink.

Function: Determine whether the admin bar should be showing.

Function: Provide an edit link for posts and terms.

Function: Add “Add New” menu.

Function: Retrieve the admin bar display preference of a user.

Function: Instantiate the admin bar object and set it up as a global for access elsewhere.

Function: Renders the admin bar to the page based on the $wp_admin_bar->menu member var.