Hy,
I'm studying PortfolioAnalyzer_2010 WPF sample to implement a similar user interface in my shell application. I have tried to change SkinStorage.VisualStyle from default "Office2013" to "Blend" changing the xaml coe of Shell.xaml window from:
syncfusion:SkinStorage.VisualStyle="Office2013"
to
syncfusion:SkinStorage.VisualStyle="Blend"
If I recompile this sample with this last value of VisualStyle property, I don't see File Tab button and, consequently I cannot access to backstage window
However you did a great job, good
Best Regards
Rolando