As far as I can tell, the following is just a simple string literal with four escapes for the double quotes:

string x = "{ \"Matter\": \"openDate\" }";

Why does Visual Studio make the curly braces and the semicolon black and \"Matter\" brown? Shouldn't the whole thing be red, like \"openDate\"?

CodePudding user response：

It does appear to be intentional JSON highlighting. If you go to Tools -> Options -> Environment -> Fonts and Colors, you can see and change the settings:

You can turn it on and off in the settings here (note I had to close the file and re-open it for the changes to take effect):