Looking at the GenCon prerelease softcover, I notice that the Section titles in the gray box in the top-right corner of the odd pages are pretty easy to distinguish on the page edges when the book is closed. If each section’s gray box was offset a bit down the page - sort of like tab indexes - that could be handy, since you could look at the edge of the book and know where Section 5 started before you even opened it.
Cheers Tavis. I’ve sent it on to you.