How to set color themes (XML) in PowerPoint (MAC)
Please copy all the files from the folder “XML Files” to this folder:
MAC (Option 1)
MacintoshHD > Users:YourUserName > Library > Application Support > Microsoft:Office > User Templates > My Themes > Theme Colors
If your PowerPoint was running during the process of copying files, it is necessary to completely close and restart it for changes to take effect.