Lightbox on Featured Image, again

I am using a block theme and it seems that the Loop is replaced with the Query Loop bock, as explained here:

https://make.www.ads-software.com/core/2023/11/13/main-query-loop-handling-for-block-themes-in-6-4/

So I’m unsure even of where I should go looking for the theme file I need to edit.

It looks like links in block theme elements will need to be handled by a plugin, so let’s continue to track things in the feature request you created on SLB’s official support forum to keep discussion on this functionality in one place.

Thanks.