In this video I show how you can create a branding screen in your Power Apps applications that mimics your company brand standard and use that screen to create a custom re-usable theme.
This is an expansion on my "App Makeover: Quick Tips for Beautiful PowerApps" talk at Microsoft Ignite. In that talk I discuss the Power Apps Pyramid for well designed apps which include Performance, User Experience and Branding. You can watch that session here: https://youtu.be/UuIwB8YYKao
watch?v=uAQa-Zg3yGk