Sorry this took so long. My darling daughter installed my new computer while I was gone flying and it's taking me a while today to come up to speed on it. Let's look at a few more shop details.
This is the garage I built in 2003, that preceded the old shop restoration. I try to learn from my past experience. You've seen this picture before but this time look at the electrical outlets. There are 9 seen or rather, nearly seen in this picture..........right, that's what I found out too. Putting white outlets and covers on white walls makes them nearly invisible. Sometimes that's a good thing, but not always.
Since I was putting in black and white tile floors I thought I'd use that same theme on the outlets. Past experience showed that they were not only difficult to find in white, they also showed dirt and grease easily.
I used quad (4) outlets everywhere at the 4' level. The covers were square in profile so they echoed the black floor tiles after a sort. The same held true for the light switch covers plus they are now easy to locate and not look dirty.
But there are places I didn't want to draw attention to the outlets. Any that were below the mid-wall area is one such spot.
The covers really don't stand out if they are white on white. ( Notice I got that cover installed straight and not crooked like the speaker switch cover a few feet away. Remember the one from page 32, post # 638, 10th picture down......... You might think that crooked cover is STILL annoying to me.........really it isn't.........I've grown since then..........learned to put things behind me........don't look back.........put the past behind and just look forward, yesseriee Bob, no worries at all about that dumb A$$ COVER THAT FOUGHT ME FOR HOURS!!!!!!!!!!!!!!!!!!!!!!!!!!

No, I'm a much better person now since that quaint little challenging experience.
I also have several outlets on the ceilings.
Not only are the ceiling outlets white but the sound system speakers and incandescent light fixtures are also.
On the welding wall I used polished, brushed stainless steel covers to match the walls.
As long as we're at the welding bench, this is the oak rub rail I installed to keep the bench which is on casters, from denting up the stainless steel on the wall. Brass screws in this case to better match the stained oak finish, rather than the usual stainless screws.
I'm bbbaack..........
Thomas