When a grouping symbol (open parens and curly braces and such) is selected, Sublime will show you the opposite one by underlining it. This is hard to see. I am fond of how Xcode handles it, by highlighting it and making that highlight pop up a little bit in front of you (there's probably a word for what it does, but just try it out and see). Would be awesome if Sublime did this when using the find function and when I move the cursor onto those characters.
Customer support service by UserEcho