•menus: menubar, menupopup, menuitem, menuseparator
•toolbars: toolbar, toolbaritem, toolbox
(holds toolbars
and adds grippies for collapsing)
•titledbutton, progressmeter, tri-state checkbox
•tree: tree, treecaption, treecolgroup,
treecol, treehead, treechildren, treeitem, treefoot, treerow,
treecell
•tab view: tabcontrol, tabbox, tab,
tabpanel, titledbutton
•