getSettingsOpt :: Opt a -> Settings -> a
getSettingsOpt opt = maybe (opt_default opt) id . getSettingsOpt' opt
getSettingsOpt :: Opt a -> Settings -> a
getSettingsOpt opt = maybe (opt_default opt) id . getSettingsOpt' opt
getSettingsOpt opt = maybe (opt_default opt) id . getSettingsOpt' opt