Blackberry 8100 - Manual (Page 211)

Display and keyboard
Backlighting
About backlighting
The screen and keyboard on your BlackBerry® device are designed to be lit so that you can use your device in various lighting conditions.
The backlighting is designed to adjust automatically depending on lighting conditions in your environment.
Set the brightness of the backlighting
1. In the device options, click Screen/Keyboard.
2. Set the Backlight Brightness field.
3. Press the Menu key.
4. Click Save.
Set how long backlighting remains on
1. In the device options, click Screen/Keyboard.
2. Set the Backlight Timeout field.
3. Press the Menu key.
4. Click Save.
Display settings
Use a picture as the Home screen background
1. In the media application, click a media type.
2. Click a media folder that contains pictures.
3. Highlight a picture.
4. Press the key.
5. Click Set As Home Screen Image.
To clear the picture from the Home screen, press the key. Click Reset Home Screen Image.
Download a Home screen background
Verify that your wireless service provider supports this feature.
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