Randy,
I peeped at the page you posted. I know a little about anodizing aluminum and almost nothing about anodizing titanium, but here's what I'm guessing based on what I saw:
Scales are clear anodized first - titanium has that light gray "natural" color when anodized, IIRC. A design is milled (cutting thru the anodizing) and then the scale is cleaned and again anodized - which affects only the freshly exposed metal. Before the new anodizing is "sealed", the scales are immersed in dye and then the anodizing is "sealed" (boiling water bath for aluminum anodizing; not sure about titanium). If another colored area is involved, the scales are engraved further and the anodize-dye-seal cycle repeated.
If I was doing that in alumunum, that's how I would do what I saw on the web site you posted - and depending on a few variables (like the exact aluminum alloy) quality control could be either simple or difficult. Perhaps someone who knows about anodizing titanium could comment?
Anodizing and coloring aluminum is easy enough to DIY with virtually no investment in equipment.
PS - OK; I just did a quick check and here is what I found out - it is even easier than anodizing aluminum AND the color is not dyed in - different depth/crystal formation of the oxide layer gives different hues -
here are some examplesAluminum anodizing is "soft" and readily takes dyes until it is "set" (hardened or sealed) with a boiling water bath. Titanium looks much simpler to anodize - see
this site for an example. Of course, gaining precise control over color and uniformity is one of those QC things.
Here's a quote from another site:
"The colors produced by anodizing titanium are formed by the refraction of light off of and through the thin titanium oxide layer that is produced. These colors are called interference colors. There are no pigments or dyes involved. By combining various surface finishes, striking effects can be achieved."
I still don't know much about how to actually anodize titanium <grin> - aluminum is fun to anodize, though.
Tom