As you know, Windows8
theme provides a set of different shared resources, that you can use to modify the entire color scheme of this theme using a few lines of code. The selected background of most ItemControls components use BasicBrush
resource, that you can modify to color, that uses transparency. Such global setting will affect the outer Border of components and normal state of different paths etc. Your note is reasonable one, if you do not need to modify this resource for all controls,
I may recommend you to modify only a specific component and its settings.
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