@sogaiu, when you syntax highlight and rainbow up the code in VS Code, how long time does that take? It seems that the API for working with the syntax tree should make it pretty fast to also use the results from the parsing. Currently in Calva, adding rainbow parens and comment highlighting takes about half a sec for Clojure core.clj
on my 6 cores Macbook Pro 16", using that TokenCursor
I talked about.