Rich,
Sorry for the late input. I didn't really think about it until you mentioned the updated GUI, as I so seldom use it. About the screenshots, should they use the default theme? The options I see are:
A) Use "
openwrt.org" theme that a new user would see
B) Update the default theme to "bootstrap"
Personally I find the new "bootstrap" theme more esthetically pleasing and modern. It's hard for me to generalize (I'm not neuro-typical, in the autistic spectrum, albeit in the highly functional group thankfully). That being said, IIRC (If I Recall Correctly) I found the double layers of tabs mildly confusing at first. The menu system is something that (nearly) all users are already familiar with (particularly those that would be configuring a router...).