I’ve hit the wall on trying to be able to set the background of a single PowerPoint slide (not the master slide) to a picture. Here is the code I have so far. Any help would be greatly appreciated!
set new_file to choose file with prompt "Open picture file for background:"
set new_file to new_file as text
tell application "Microsoft PowerPoint"
set thePres to active presentation
set theSlide to make new slide at end of thePres with properties {layout:slide layout text slide}
tell theSlide
set follow master background to false
set display master shapes to false
--code to set background picture to go here
end tell
end tell