Customizing title bar icon in VS2013 isolated shell - theme aware / active / inactive

Hi,

I have an application based on VS2013 isolated shell. Currently, the icon specified in the pkgdef is used by the title bar and as the default application icon (shortcuts).

MyApp.Application.pkgdef

[$RootKey$]
"AppIcon"="$RootFolder$\ApplicationIcon.ico"

I'm looking for sample code to make the title bar icon change in function of the theme and the active/inactive window state.

Just like it does in VS2013:

Thanks a lot!

-Martin