[Pharo-project] who is "dfgs"?

Hi, I would like to ask who has the initials "dfgs". And I have a question for him/her. The VTermInputDriver initialization methods generate a lot of unimplemented calls because they expect a handler object with protocol that is not defined in the image. Do we need the VTerm classes at all? Can you provide an abstract handler class? Or what about to switch this calls to perform:/perform:with: form. Cheers, -- Pavel