I am trying just the WPF Designer and created a WPF .NET Framework project. In the upper right corner side, there is a loading screen that does not appear. What's its intend?
PS: Oh, and some more hints: The "Microsoft.Windows.Design.Extensibility" dll is missing when creating a WPF project, I had to manually add it (build failed).
Further, when debugging then, two instances of the program are opened