The Secondary division of Texas Art Education Association adressed the
matting issue. We could get no firm recomendations fron anyone. For
portfolio work we recommended neutral mats, with work that depended on a
decorative mat be matted in a neutral mat. Slides were also recommended
for that type of work in a portfolio. But as far as I could judge from
the imput we received hang your shows for the best visual effect if that
reguires colored mats ,go for it.