NOTE: This has capability to work on dark skin, but you will need to make your own normal map!
I tried, I cried, I fought, I bled..(notreally)- I asked for help from multiple people. I could NOT get this tattoo's maps to work correctly so that I could provide inclusivity out of the box. It worked, and then it didn't, or something went wrong, and it was just a hard fought battle that I lost.