It's not really built on React, on a second look. It looks like they tried it or may try in the future: https://github.com/atom/react-coffee https://github.co

It's not really built on React, on a second look. It looks like they tried it or may try in the future: https://github.com/atom/react-coffee https://github.com/atom/react-coffee But this is what they use for views: http://atom.github.io/space-pen/ http://atom.github.io/space-pen/