How Do I Adjust the Background Color in the App Reader?

To change the background color or the Reader, do the following:
Tap the icon in the upper right hand corner of the screen.

app_reader_menu_button.png

Tap "A" in the banner of the sub window.

setting_sub_menu_icon.png

There are 3 options for background color: White, Black, and Sepia

background_controls.PNG

Select the color option you desire. It will be reflected in the Preview Window. Press "Close" to dismiss the window

close_background.png

The changes are applied to the eBook

background_changed.png