thanks very much for this – sorry for the delay – for some reason the notification email didn’t arrive when you replied to the thread.
the problem i’ve got is that i’ve set up a child theme and can’t simply replace the 3 files in your zip file because i’ve made some other modifications to some of those files. is there any chance you could let me know how/where the files vary so i can look at making the same changes to my child theme copies. any quick pointers would be useful. i think i’m ok on the content-gallery file, but what did you change on the header-functions and style.css files? thanks again