I have found that using Tools->Reports... I can find a list of image files and see how many references to them exist.
But I don't see a way to find if there are references in the html to image files that are not included in the epub.
I would like to know if there is a way to find these references to missing files. If not, I propose to consider adding that function to Tools->Reports...
Thanks in advance, and for all your amazing work.
