Oh yeah. That purple plant snuck in the photos is a FL black knight. Aka FL black. It's a cut I believe it's florida grapefruit from the 90s that pollenated the cut of "the purps" that was circulating FL in the 1990's.
I'll get the name of the breeder correct before I post it, he also recently made FL black strawberrys, it's green sumthin. I'll figure it out.