void gtk_numerable_icon_set_background_icon_name ( GtkNumerableIcon* self, const gchar* icon_name )
Updates the icon to use the icon named
icon_name from the
current icon theme as the base background image. If
self will go back using style information or default
theming for its background image.
If this method is called and a
GIcon was already set as
background for the icon,
icon_name will be used, i.e. the
last method called between
gtk_numerable_icon_set_background_gicon() has always priority.
Please do not use it in newly written code.