Is the cover of that outlet powder coated like the other red parts?
No Mark it isn't. It's a plastic piece that wouldn't stand up to the heat of the powder process. For those few places I'd need something red that couldn't be powdered I've got two alternatives. Took one of the powdered pieces to good local automotive paint supply house. They scanned the color and mixed a can of spray and a can of plastic/vinyl/leather dye.
The spray paint with a clear coat has proved to be an excellent match in the few places I've used it. Also have a touch up bottle of the same color for the small spots that will eventually happen.
The dye isn't quite as close a match after it dries. But it takes a good light (like the camera flash) to make it really stand out. There is only a couple of plastic pieces that will get used on. And they're small. So nothing much to really stand out there.