Re: 2015 ha
I would stick with gloss black which would match the windows and window dividers perfectly. Painting them body color IMO would be just putting a color in an usual spot and may end up looking really awkward. Plus, there are areas where the chrome strip doesn't butt right up against the paint so its not going to look consistent.
I say tint match the front two windows 20% to the rears, have the trim done in gloss black and that thing would be SWEET!
Congrats on the purchase!!
2015 Jeep Grand Cherokee High Altitude, Bright White, V6, HK audio