This exact question has been asked before, but I’m hoping that 5 years later there might be a different answer.
Here’s the original question: https://forum.sublimetext.com/t/extend-syntax-definition-from-user-folder/147/2&hilit=extend+syntax+definition#p965
I have a syntax definition working just fine using AAAPackageDev, but I would like it to simply augment the current (in this case) javascript syntax without having to copy the existing syntax to my user folder, making it no longer update.
Any thoughts? Thanks!