This is SuperTree in compact auto-collapsing mode with no scroll buttons. Because users can't scroll the items, we've used the Testmode parameter to determine the maximum possible height of the menu: click anywhere inside the applet and you'll see the best dimensions displayed in a tooltip message.
We've specified icons in the IconFolderClosed, IconFolderOpen and IconPage parameters. However, for the very last item, we've added a custom icon.
The Underline parameter is set to 'All', so all items gain an HTML-style underline when focused. The HandCursor parameter is set to 'Links', so a hand cursor is shown only for items that link somewhere.
We're also using sounds for all 6 available sound events, and we've placed a couple of separators on the menu (above the Home item, and in Menu Systems -> Horizontal Menus).