Visible control to toggle icons in buttons

[Luca Ferretti <elle uca libero it>]

As all you may know, we recently switched to a "no icons" approach in
both menus[1] and buttons[2].

Currently the Appearance capplet provides a checkbox to toggle icons in menus.

Should we (re)add a checkbox for buttons too? Maybe users that really
want icons on their buttons could appreciate more a checkbox then open
gconf-editor or run gconftool :)

[1] http://git.gnome.org/cgit/libgnome/commit/?id=3af3f24488fd467472f1f8cc3622481ea48003bf
[2] http://git.gnome.org/cgit/libgnome/commit/?id=c7ac044820d119ce927b405d0586c5db8291cb82