There's nothing on the headliner. The dye doesn't come out when you wash it, please notice there's a proofer included which "seals" of the staining. I guess the color is just a regular fabric dye, like what you use to dye cloth with.
Once again, I'm very impressed with the result.
Ulrik
'67 250 SL Papyrus White 113043-10-000023