ResourceReferenceKeyNotFoundException: 'TextDangerBrush' resource not found. --Key: TextDangerBrush StackTrace: at MS.Internal.Helper.FindResourceHelper.DoTryCatchWhen(Object arg) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)