Palamon - Download PPT Themes for Mac Free. Wart - PowerPoint Themes Free Microsoft uses bright colors with geometric designs in a clean and simple layout. Entropy - Microsoft PowerPoint Background Themes Free Download features abstract green and red smokey effects on a dark background. In every template you download you’ll always find both versions of the template – for PowerPoint and for Keynote so if you ever need to work in a native mac environment you don’t need to worry. Apart from PowerPoint templates we also provide templates for native presentation software on Mac called Keynote.