New API in gtkmm 3.2

Class Gtk::FontChooser

Class Gtk::FontChooserDialog

Class Gtk::FontChooserWidget

Member Gtk::Scale::Scale (Orientation orientation)

Member Gtk::Tooltip::unset_custom ()

Member Gtk::Tooltip::unset_icon ()

Member Gtk::Tooltip::unset_markup ()

Member Gtk::Tooltip::unset_text ()