Introduction
In the Home settings section, you can configure the brand logo displayed at the top of the device Home screen, as well as customize the font color and button background colors for the MainNav buttons located at the bottom of the Home screen.
How to Upload/Add Images
Step 1: Click the Green Cloud Icon 
under ‘Logo’
Step 2: Select an image that exists in the Gallery or upload an image from your hard drive.
Recommended size and format for creative assets are as follows:
Brand Logo: .png 243x100px
Full Screen Background Image: .png 600x1024px
Full Screen Background video: .mp4 video format, 600x1024px, 24 fps, H264 encoding
How to Edit Button/Icon Front and Background Colors
Scroll down to the Buttons Section on the right panel of the screen.
Edit the font and background colors by entering the hex code digits or selecting the color. The opacity of the background color may also be adjusted.
Use the following link to obtain a hex code you like or to discover more: https://htmlcolorcodes.com/