I'm looking at properly implementing dw::fltk::ui::FltkListResource::isSelected() and I need to maintain a hash of Items to boolean values. However, lout::container::typed::HashTable requires the keys and values to inherit lout::object::Object . I could use lout::object::Integer values, but the really appropriate thing would be lout::object::Bool , which doesn't exist. Is it worth implementing lout::object::Bool or should I just use lout::object::Integer ? Regards, Jeremy Henty