"titan gray" is just going to be a matte ceramic clearcoat. it will probably be MC-157FQ, unless rainbow has more of the 160FQ in stock (different viscosities of the same paint). type 2 anodization aka "titan gray" is a highly variable process. the color that danco advertises is basically a neutral matte gray. due to the rx involved, type 2 anodization requires a post-dip abrasive treatment, so the actual color can be pretty variable, but generally, the color is a dull gray and the finish after surface treatment is very matte. the easiest way to go about getting this is to do a pre-paint surface treatment then give it a very thin matte clear. this also helps keeps costs down, and there's no point covering raw titanium with a paint color called "titanium".