How to enable syntax highlighting for CS files in Visual Code on OS X?

Question

The title says it all. I've recently followed this offical Microsoft tutorial to build an ASP.NET web app on my MacBook, everything works fine (I can launch the web app) except for the syntax highlighting for .cs files. .js , .html and everything has syntax highlighted EXCEPT for C# files...How would I resolve this?

Here is my project.json file for your reference (Apologies for the external link, but the file is too huge and will break your eyes if posted here)

Answer 1

Adding to the comments: In VS Code

Press CTRL-P

Enter ext install csharp

Enjoy C# syntax highlighting