Here you can see the administrator toolbar (in black) with the "Content" section expanded. Clicking on the cog (top-middle icon in the toolbar) will take you to the administrator home page. In addition to providing quick access to administrative pages, the admin toolbar includes the "Current Page" heading which will display options (eg "Rename", "Permissions", "Revision History" etc) specific to the currently displayed page.
The administrator home page displays the same information as the Administrator Toolbar, but with all of the main groupings expanded.
Less.php: less.js ported to PHP