Inserting images into Google Slides/Ppt Templates

Hello,

I am struggling to insert images into Google Slides and PowerPoint Templates. The Read Me doc states “Change Picture : Click “click icon to add picture” and then browse the picture that you want” however I do not see any such option from the slide view or Edit Theme view, and inserting pictures manually does not let them fit into the masked areas.


Any guidance would be greatly appreciated!

Thanks,
Josh