Does anyone know how to alter the Bing Maps Shift/Ctrl + Click Drag Zoom colors? By default it's a red stroke with a white transparent fill. On the Bing Maps web site they have actually changed it to a dotted white stroke and transparent blue fill.
Go into blend, select the map control, right click it and select to edit a copy of it's template. Note that inside the template there's rectangle called "ZoomBox". You can change its appearance however you like.