Is it possible to override an extension and select a different syntax for it?

[eproxus]

I have files with the extension .config that I'd like to syntax highlight as Erlang instead of Configuration file. Is that possible?

I tried adding a plain file filename pattern with *.config and selected Erlang syntax, but it seems the handler for Configuration file takes precedence anyway.

[JoiHallecksM6]

Yes, it is possible to configure Visual Studio Code to treat files with a .config extension as Erlang files and provide syntax highlighting accordingly.

[sbarex]

You can customize the syntax only for the UTIs (one UTI can be associated to multiple extensions) and not a sigle extension.
You must show the advanced settings (from the view menu), and then the is a syntax drop down menu to choose the format from

[eproxus]

But that would break any other highlighting for actual Configuration files like .conf and .htaccess?

[sbarex]

unfortunately for the moment yes