New Post: Custom Style Template for PropertyGrid not Working, Any Ideas?

I have added the generic.xaml but it still will not let me style the control. It now just give a "Copy Style failed." within the VS Designer or Blend when I tried to copy the default style to make changes to it.

Here is what I am including:

<ResourceDictionary Source="/Xceed.Wpf.Toolkit;component/themes/generic.xaml" />