Through the mobile app, you can upload your own personal photos to Brilliant as Screen Art/Background.
Start by downloading the iOS/Android App, and then sign into the app with your email address.
Once you're signed into the app and your Brilliant is connected, you can tap on the bottom right button.
From here, you can choose to Upload Photos. When you tap Upload Photos, select a photo from your mobile device.
For more display setting options on your Brilliant, learn more here.