I think Jayco went to the black trip across the board this year. I wasn't sure about it when I saw the pictures, but changed my tune when I saw it in person.
nbhybrid makes a good point about heat, but I haven't noticed things running hotter, being hot to the touch, etc. That said, I debated changing my propane tank cover to black as the white is so hard to keep clean, but decided not to due to heat build-up concerns.
Rob & Kelly, Bella & Brady (Miniature Schnauzers)
2016 Eagle 323LKTS
2016 Ram 2500 6.7L CTD
2015 White Hawk 29REKS Summit Edition (Traded)