For some reason images seem to be difficult for me. I am not going to ask yet, as I have not explored all my options.
But one thing I have looked into is the background image on this site dtscarpentry.com. I have done some testing with just this image, nothing else. When I add this as a background image, I do not have the 'Focal Point' option? Any suggestions? (The owner wants to keep the site as is, with very minor changes.)