I've looked through Generic.xaml and ThemeResources.xaml in the following path:
C:\Program Files (x86)\Windows Kits\8.0\Include\WinRT\Xaml\Design
However, they don't seem to contain a resource key that I can use in order to retrieve the color of the current scheme selected in the Windows 8 start screen.
The color I am trying to retrieve through a DynamicResource in the XAML is seen visually below, to demonstrate my point.

There is no API available to use the currently selected Windows theme color.
Yes, no API unluckily. What about this workaround?
http://blog.quppa.net/2013/01/02/retrieving-windows-8-theme-colours/
来源:https://stackoverflow.com/questions/12192610/color-of-startscreen-in-windows-8-through-metro-dynamicresource