Kevin, if I understand correctly what you want to achieve I can tell
you what Lynton McKenzie does or ‘did’.
When he has finished inlaying the gold and has taken it down to the
surface he uses a square graver to make a cut right next to the gold
and then fills that cut with black expoxy or black paint. Others have
used black rustoleum paint. The cut is very small but with the black
it really pops. The fact that you’re talking about bronze probably
wouldn’t matter. I think the effect would be the same.
As for L McKenzie the words are from his mouth via his videos. Hope