When I first had the idea in my head I was adamant they were going to be black but when I actually started looking at examples I moved more towards blending them into the bonnet for more of a stock look.
Going for body colour (race red) when mine are fitted next week. If I had glossed all the black bits on the car I may have gone with gloss black as Steve Mander is doing (along with others). I think on my car (and yours) body colour will be best