backgroundOpacity

This XML element configures the opaqueness of the background wallpaper image specified as a decimal-formatted percentage in the backgroundWallpaper element.

Value	Description
opacity_percent	The percentage of opaqueness of the backgroundWallpaper element specified in a decimal formatted percentage—for example, a value of 0.8 designates 80% opaqueness.

Example
<add key="backgroundOpacity" value="0.8"/>