Your version behaves differently than mine.
Using the tree hierarchy I used: Gallery>2023 President's Day>day1
The highlight images show up in both Gallery and Gallery>2023 President's Day.
I think they should only pop up one level.

I think RegularPagesRecursive should be replaced by RegularPages.

Should be fixed by d2b8a01.

Confirmed! Works perfectly, thanks.

...while it works, there is one possible enhancement that would be nice... I'm trying to decode how to do it but you're probably faster. It would be nice if the highlight photos that show up are in their own bigger-picture virtual album and that one could navigate through them (e.g. front and back)( (and just them, not the albums) as if they were their own album.

It would be nice if the highlight photos that show up are in their own bigger-picture virtual album and that one could navigate through them (e.g. front and back)( (and just them, not the albums) as if they were their own album.

I created a PR for this, we need separate highlight images from albums, please tweak that PR (checkout -b and create a new PR for that branch style-separate-highlight-images) if you've a better UI idea.

I forgot to link the PR, it's #100.