Thanks. I tried it but it did not quite do what I needed so I uninstalled it. (I'm afraid of plugins in general taking performace away). It worked on JS-files but I have HTML-documents containing (example) JavaScript etc. code. Seems it did not react to parenthesis in them. Also even in plain JS-files you may have strings containing parenthesis.
Standard WebStorm already highlights matching parenthesis in JavaScript and does a good job at that.
I don't use rainbow brackets, but I do use semantic highlighting. It's worth seeing if semantic highlighting would still be useful to you. It greatly helps scanning speed.
