TailwindCSS IntelliSense with Serbea

I have been experimenting with Serbea templates with Bridgetown and was not able to get TailwindCSS IntelliSense to work.

Serbea files using the file extension .serb, so my first attempt to configure it looked like this:

"tailwindCSS.includeLanguages": {
  "serb": "html"
},

However, what I needed to do was specify the file content type:

"tailwindCSS.includeLanguages": {
  "serbea": "html"
},