There are examples of both on COMC, which you can open examples full-size in two tabs (or windows), and flip back an forth between them. WhatI noticed is not only is the 91 lighter, the background behind Bo is lighter as well. Looks like whatever makes the blue darker (maybe black) wasn't firing fully at the time. And on second look, the shadow under the banner at the top is lighter gray too. Seems like black wasn't "fully loaded" on several sheets. I think it's just a printing issue, but I want to see what the membership has to say.
-- Dan --
Note: Please see my profile for more info regarding trading (section updated 3/4/2024). I have added a large portion of my inventory to the site, and currently have trading turned on (details are in my profile).