No in-string highlighting for C#

[ozra]

At the company I'm working C# is the only option for coding.

In the VSCode extension description I see: "...syntax highlighting embedded in other languages, namely Markdown, Java, Python, Javascriopt, .NET and Go.". Granted .net != C#, but I expected it to be supported.
It works fine if I write a typescript file, so it is installed and working properly otherwise.

I've tried all variants I can think of but there is no highlighting of cypher queries anyway:

Example of variations:

[stefanak-michal]

Why don't add setting where we can set file extensions where this highlighting will be applied. I would like if php has support too.