These two fields allow to specify a different default assignee for ticket opened against this package in bugzilla. Note: The EPEL field is always displayed for packages in the 'rpms' namespace regardless of whether it is used in bugzilla or not.
LablGTK is an Objective Caml interface to gtk+.
It uses the rich type system of Objective Caml to provide a strongly typed, yet very comfortable, object-oriented interface to gtk+. This is not that easy if you know the dynamic typing approach taken by gtk+.