Also, ToolBar style has a look[6] which does not belong for toolbars at all, it is used for buttons rendered inside, and it lacks the toolbar style itself, so we can render a chameleonized toolbar too (its background!), BTW what are look[4] & look[5] uses?
Regards
Mauricio
ToolBar chameleon is not quite finished; feel free to improve on it.
Anyway, I think that style of buttons rendered belongs right to ToolBar, because it is ToolBar who creates the buttons. (But I might be wrong too; I think that the proof of concept here is to provide the Office toolbar implementation that would be capable of displaying normal XP toolbar too).