`object
val virtual obj : [> `fontbutton ] Gobject.obj
method font_name : string
method set_font_name : string -> unit
method set_show_size : bool -> unit
method set_show_style : bool -> unit
method set_title : string -> unit
method set_use_font : bool -> unit
method set_use_size : bool -> unit
method show_size : bool
method show_style : bool
method title : string
method use_font : bool
method use_size : bool
end`