is that C#

I can tell that is Visual Studio open, but I am not sure if that the code is C#. I cant tell if it has anything to do with SunContract or is it a random project open. because everything ETH related has nothing to do with C#, I am excited to see some altcoins or smart contracts written in C# though.
Ethereum is written in C++, Rust, Go ,since this is a ethereum based project they do not want to write a new code to come up with a project,they will be using a project that is able to do without any hindrance. I am waiting for the project to commence and it is a challenging project and i expect the best and i hope they could fulfill the project plan.