Is there a root keyword in JavaScript or why does Sublime display it like this?

root used to be a variable in Node.js however it was deprecated in v6.

UPDATE: The old URL doesn't work anymore, so I've updated it with the Internet Archive's Wayback Machine's version of it, also here's the merge request with the change.

The declaration comes from this file in Sublime.

UPDATE: To remove the syntax rule, install PackageResourceViewer as per the instructions here and then open up the JavaScript.sublime-syntax file, find the word root (there's currently only one) and remove it (and the following | character). Note that you'll need to run Sublime as an administrator on Windows in order to edit the file.