Accent Colors for Styled TextBlocks in WP7 Selected ListBoxItems

The ProblemThe Windows Phone tools in Visual Studio an Expression Blend let you create a 'Windows Phone Data Bound Application" (Template). This application uses SampleData and two List/Detail pages. The List (MainPage) contains a listbox which is templated. The ItemSource of this listbox is databound to the Items in the SampleData. When run the application and select an Item in the ListBox the