Display settings allow you to customize the backlight, software text language, and color scheme.
To change display settings, select (Menu >) Tools > Settings > Display.
Backlight (not available on all phones) - select a backlight setting.
Color Mode - select Day (light background with dark text), Night (dark background with light text), or Auto (colors change according to the time of day).
Screen Timeout (Palm devices only) - select Enabled (screen turns off based on the Palm Auto-Off setting), Disabled (screen remains on), or Auto (the application turns off the screen based on the Palm Auto-Off setting; the screen remains on when connected to external power).
Text - select a language for the software. This does not change the map text.
Keyboards - enable or disable international-character keyboards. Select the check box next to a language to enable that keyboard.