GObject
    ╰── GInitiallyUnowned
        ├── ClutterActor
        │   ├── GtkClutterActor
        │   ╰── ClutterTexture
        │       ╰── GtkClutterTexture
        ╰── GtkWidget
            ╰── GtkContainer
                ├── GtkClutterEmbed
                ╰── GtkBin
                    ╰── GtkWindow
                        ╰── GtkClutterWindow