Right now the Headers column is essentially useless because the json renderer doesn't seem to want to display beyond one level of depth so you just see "[{...},{...},etc]". Can you make this more usable? Maybe add some kind of expansion ui where it will pretty print the headers in multiple lines?
Ah. Yes its not very intuitive. I would personally have used a "+". But I think the bigger issue that makes it unintuitive is that the cursor CSS is set on the entire <p> tag of the condensed JSON, but the click event is only set on the ">". If you set the click on the entire <p> as well, then it becomes more obvious that clicking the row does something.