I'm looking for a plugin that gives me some on-the-fly syntax highlighting in the HTML editor of posts and pages. I swear I've seen it somewhere, but I can't find it, all the ones I find are for showing it nicely on the front-end of the post/page to users.
In case it's not clear, I Would like to have my HTML editor tab show me stuff like this: https://i.sstatic.net/wdYvr.png