When i did it i jsut did light layesrs of black then lots of laquere then more black, keep going untill you get yours desierd darkness.
ive got clear indicators now
I used tinting spray cans, can pick it up any where. Those are mainly for tint windows and rear break lights etc. I spray a lot of coats, until you can't see the orange. Thought i over done it. But lights still coming though.