Hey.
I use CIDER in Spacemacs and they do this:
image

How can I achieve that in vim/nvim?
The default behavior in nvim gives me this:
image

When I try to do define my own syntax for highlighting part of a keyword I can't understand how to do it (copied from this project) and I end up highlighting the whole keyword or nothing at all:

syntax match clojureKeywordMine "\v<:{1,2}([^ \n\r\t()\[\]{}";@^`~\\/]+/)*<!>"
highlight clojureKeywordMine ctermbg=darkred