Michael, it anodized ti. It's real easy to do.
I use a Dremel and an 1/8' ballnose carbide burr
and just get jiggy with it.
I think Darrel Ralph did it on some pieces.
I saw a pic of one with and overlay with a window cut out and behind it it looked like he did a "nugget" effect. That's what I think I saw.
Here's a pic of one of two all damascus integrals I'm working on today with some jiggy work. I messed up a inlay of mastodon ivory, (got it hot and it warped badly). I did'nt have any more so I made a wood inlay, but it didn't look right then i just hauled off and made a ti inlay and put the nugget factor on it, anodized it and it worked for me. So far the people that have seen it really like it so I'm going to go with it.
These 2 have 3" blades and 7-1/8" OAL and only
5/16" thin!! I am going to round them over to put some curve in em. The damascus is Jerry Rados' ladder pattern in W-2 and 203E. Purty stuff!!