Oe taillights that are tinted
best way to do it is mix in a tiny bit of black paint in with some clear coat and spray em. Stay away from VHT Niteshade.
What don't you like about Niteshades?
I had a pair of taillights done before that turned out really sweet, just had to make sure it was clear coated.
Stock tails here with "smoked" vinyl covers. Not blacked out ones but smoked.
Mine look just like that.
Link maybe?