I've noticed that some code cleanup is started on GEGL,maybee it would be wise to add the _() macro to the parameter specifications.
g_object_class_install_property (gobject_class, PROP_NAME, g_param_spec_string ("name", _("Name"), _("The GeglObject's name"), "",G_PARAM_CONSTRUCT ||G_PARAM_READWRITE));
It could also be a task that i could take up. Geert