Show here your Celtic warrior impression

[M. Demetrius]

As always, I'm no expert, but I'm pretty sure vitrium is a color, not a substance. It's a bluish green color like certain kinds of glass. Old Coca Cola bottles in the US are close to that color, as are some wine bottles. At any rate, we don't know that they actually tattooed that color, or painted it, or whatever. Some tribes used tattooes, but not as complex in coloration and details as modern tattoos often tend to be.