For wire differentiation you can further uses colored electrical tape. I only have 12 colors of wire but I also have 12 colors of electrical tape plus number tape.
On my RR there are 9 power districts but most of the wires go to one common panel so in is not uncommon to find several different wires with the same color insulation but the tape and numbers break it down. Circuit chasing is easy here.
Just like in house wiring, tape the wire ends to denote variant usage.
< This is a flip up 2' X 16' yard.
Plus check out any of Mike CT or Elliott's electrical photos.