The Branding page in the Appearance section is a place to load your graphics for your site and loading screens in the app.
To load your graphics, simply drag and drop them on the right side and watch them load on the left.
If the sizings are off, a red X will appear on the right and not load that image. The sizes needed are listed as follows:
Conference Icon - 300x300
Email Banner - 580x116
Mobile Portrait Main Banner - 1536x288
Mobile Landscape Main Banner - 2008x200
Desktop Main Banner - 1000x200
iPhone X Portrait Loading Screen - 1125x2436
iPad Portrait Loading Screen - 2048x2732
iPad Landscape Loading Screen - 2732x2048
iPhone Portrait Loading Screen - 1242x2208
Android Portrait Loading Screen - 960x1600
Android Landscape Loading Screen - 1600x960
Please note: Updating these graphics do not require an app build update.