You can change the background image of the Timer easily. Simply:
- Select the Profile icon on the top right corner of the Home screen.
- Tap on Settings (gear icon on the upper right).
- Click on Timer Settings.
- Tap on Background Image.
Note: If you wish to upload a photo for the Timer, please ensure you have allowed the app access to your photos through your device settings.
iOS: Launch iOS settings > Privacy > Photos > Locate Insight Timer.
Android: Launch Android Settings > Apps > Locate Insight Timer > Permissions > Set Storage Toggle to 'On'. (This setting may vary depending on the Android device).