I am a new LibreOffice user that is currently struggling with creating the first presentation. I selected one of standard templates but when I click on New Slide the background gets turquoises instead of white. When I duplicate the slides, I don’t have an issue. I can’t add another image was a new user but just imagine a duplicated slide that has a completely white background for comparison.
something like this : Changing the background of all slides at once in LibreOffice Impress - #2 by Zizi64 ?