Always love stark contrasts. Did you color it or did it just engrave that nice black?
Engrave, scribble Sharpie over the exposed areas, wipe off excess with a paper towel. Voila!
There’s probably some more elegant/better way (India ink maybe?) way to do it, but this seems to work.
Not that I’m aware of! Method works great! Nice job!
How about acrylic paint? Not sure how permanent it would be though.
@raymondking32 seems to be one of the tile Pros here… Search for his tiles methods in the forum for info.
Oh, I know. I’ve seen 'em!
Not sure if acrylic is thin enough to seep into the porous surface. I don’t have any real idea, but that’s my guess.
Good point. Maybe a wash method would work, but I think it would take multiple coats.