Deluge Forum

Hello. I am writing a book on open source educational software (Energize Education Through Open Source). One of the applications that I discuss is Deluge. I would like to include a screen shot of Deluge with this article. Can anyone tell me who I should contact to get permission to do this?

Thanks.

Afaik a screenshot does not require permission as it would be fair use but Deluge is released as free software so it is fine.