User blog comment:Kirkburn/Syntax highlighting - helping you read and write code/@comment-1038387-20150326195108/@comment-126761-20150326195734

I can see how it might feel slightly odd - but to look at it another way: it makes it very obvious that you haven't closed it :) The alternative would be to introduce a lot of lag in updates (or not update at all during editing), but I don't think that would feel entirely pleasant.