I had to remove and replace 5 of my decals on the 2016 GP. They are medium gray in color. They seemed more prone to the sun fade.
I was fortunate that ORV had some in stock. I called their parts department and they sent a graphics design build sheet to me by pdf file. Then I just told them wich ones needed replacement. I also understand good graphic sign companies can duplicate them if you let them trace and photograph them before removal. Good shops will use 3M vinyl.
Taking them off is major
grunt work. I heated them with a heat gun and just scraped them off. Takes hours depending on how many have to come off. Have to be careful with the heat gun. Two of mine were the very top long decals at the roof.
But much of the sticky glue remains after that. Then you have to use solvent to remove the glue. I ended up using diesel fuel to remove the glue without damage to the fiberglass siding. You will have fading where the decal was, so it's important to match the decal as best as you can. Then I waxed and polished the rig after that. I estimate I saved at least $2k doing it myself.
Good luck. This work is doable if you have the patience.