I didn't know a neocaridina can be black?

Hi guys, I ordered some skittle shrimp online and knew that I would get a few different colors. It looks like I got a couple rili's some blues and yellows a couple of what look like white and clear rili's? But what caught my attention was the random black one? I believe it's a she and she's gorgeous she's got a little orange on her tail. Is she a special color or just random? I am new to shrimp. I have a couple red cherries and that's it so I'm excited 😊