Recently a friend of mine (who you can find on GitHub here) reintroduced me to the atom editor, which is built by GitHub. I looked at it a while back, but it was too unstable and lacked too many features for me to consider using it as my main editor. Fast forward a few years, and it's much more stable. It even comes with batteries included - it has an awesome files panel (in which you can open multiple folders), a GUI for the settings (which brackets doesn't have), and a package ecosystem which can be utilised without leaving atom. It shows you the readme for packages too, so you always know how to use packages that you've got installed (or are considering installing).

If you've heard of atom before, give it another go! You might be surprised. If you haven't, you don't know what you're missing out on.