What is the name of the GUI from VisualStudio 2015?

Question

User interface

I want a form frame and a menu like in VisualStudio 2015. I can't google what it's called. But it's not Metro Framework.

Answer 1

What is the question? Do you need to know on which framework the custom elements of Visual Studio are made? If so, then it's WPF.
There are ready-made styles, controls for WPF:
https://github.com/firstfloorsoftware/mui
mahapps.com