Marty Developer Tools is an extension to Chrome's developer tools. It shows you the current state of your stores, actions that have flowed through the application as well as allowing you to revert to an earlier state. For each action we will show:
window.Marty = require('marty')). Once you've done that, open your app in Chrome and open Chrome Developer Tools. You should see a new 'Marty' tab which gives you a view into what your application is doing.