I just bought a black vinyl cover for $10 at Camping World and covered mine. I can even operate the switches by feel through the cover.
BTW, Awesome cleaner from Walmart and the Dollar Tree takes the yellowing right off. Just spray and rinse. You'll see the yellowing melt away. Just keep it away from your wax. It melts away the wax too.
My TT came with that Lippert jack also. It lasted about 3 months and it broke. They replaced it on warranty. Now its out of warranty and I cross my fingers on every use. They are cheap. Why else would the Mfg. put them on. I'm sure I'll be looking at a Barker or something better soon.