Usually black. Mine got painted body color when the P.O. painted red (over the original green). looks good. Some TD owners paint theres too–use a flex agent with the paint, remove the welting from the car (or do it, in your case, before assembly).

Lots of welt colors available. I got some chrome style stuff for my dash; JC Whitney I think has an assortment available cheap (under $1 a foot?). It’s also easy to make using vinyl and small plastic or rubber tubing.

Here is a TF forum that mentions the look–note also the brass discussion. Lots of options for us on these–and the good thing is there are no “concourse police” to come knocking if we gussy something up “incorrectly.”