Hi Mike, If you were in the military then CAPS/LOCK makes perfect sense. However, you would have to be VERY OLD as writing that way went out of vogue with the Model 28 Teletype about 40 years ago when every service moved to some form of computer messaging/email. That said all caps is now considered a form of extreme emphasis to get your point across or i.e. YELLING. These days, when I read all caps it's actually harder on the eyes and more difficult to read so if you want your questions answered it'd be a good idea to follow the norms of the board.
In regards to your question I've seen the PVD process for wheels and even some plastic parts. Other than that no experience and interested myself if they can do it in other colors/tones (other than straight chrome). If they can should be something to try as PVD hardly affects tolerances at all though I confess I'm not sure what/how they have to prep parts for the process. Will keep an eye out for updates.