I had to sell it a long while back, and I've only seen the person I sold it to post one picture of it, which was...
This one. My new custom saber was originally supposed to be 12W Indigo but was changed to a tri-cree set somewhere between purple and indigo... so. Unfortunately thats not really spot-on accurate for either of SF's led colors.
Edit: I can say this, however... my original thought ordering the avenger weathered in indigo was a dark obi-wan "what if" scenario... and man. It was GORGEOUS. not only the color, but the hilt was really fantastic. Once i have my exhalted, ordering that saber again is next on my list.