Nokia 9290 - Manual (Page 255)

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Extras
Contrast and brightness page
Figure 101
Press + and - to adjust the bar you are editing.
Contrast level - Pressing + increases and - decreases the contrast of the display.
Brightness - The brightness level of the display. There are five levels to
choose from.
Brightness period - A time period after which, if there has not been any key
presses within that time, the brightness will go down to its lowest level. The
level will rise to the level defined in Brightness as soon as any key is pressed
again. The options are 15 sec/30 sec/45 sec/1 min/2 min.
Tip: Selecting a low
brightness level and a short
time period for the last two
options saves the battery
and increases the operation
time of the communicator.
Screen saver - A time period after which the display will blank out if the device
remains inactive. The options are 2 min/4 min/6 min/8 min/10 min.
Colors page
Color palette - The display color scheme. The options are Blue/Red/Green/Grey.
Background pattern - The background image of the command button area.
The options are Plain/Wheels/Sand/Water/Leaves.