perl-GooCanvas2-CairoTypes (Bridge between GooCanvas2 and Cairo types) There is an issue in the interaction between GooCanvas, GObject Introspection, Cairo, and their Perl bindings, which causes some functionality to be unusable from Perl side. Until it's fixed, this can serve as a workaround for it. Currently this module only "fixes" Cairo::Pattern/GooCanvas2::CairoPattern interop. For certain calls it just works if this module was included; for some other calls you need to explicitly convert the type.