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On the Color Blindness Filter screen that displays, select the option that
appears to be a solid gray rectangle. If none appear to be solid gray, then
select No Filter. After selecting one of the four options, tap the Back
button.
The setting under Color Blindness Filter reflects the option that you
selected. The setting is immediately applied.
Visual Properties
To globally change the way images are displayed, go to Main Menu >
Visual Properties. Problems that visual properties compensate for might
include a crinkled paper, a yellowed page, shadows, ink smears, or book
creases. Many adjustments are made automatically, but this screen
enables you to set the brightness level and edge definition.
Brightness
Use the left slider on the screen to control the brightness. Move the slider
up (or left) to brighten the screen or down (or right) to darken the screen.
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RUBY 10 Advanced Features and Functions
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