Contrasting color gores are an SCA phenomenon, according to everything I've
seen so far. If someone could actually come up with research to prove that
they existed, a lot of people would be happy campers. There are some
instances of a contrasting panel in some dresses (like the Pieta kirtle),
but they're fairly few and far between.
Barony of Forgotten Sea
> A lot of period dresses are widened with gores in the front, back and
> on the sides. Does anyone know if using a contrasting color for these
> gores is period?