[This commit](https://github.com/gaearon/redux-devtools/commit/0a2a97556e252bfad822ca438923774bc8b932a4) should give you an idea about how to add Redux DevTools for your app **but make sure to only apply `devTools()` in development!** In production, this will be terribly slow because actions just accumulate forever. (We'll need to implement a rolling window for dev too.)
**You can build a completely custom UI for it** because `<DevTools>` accepts a `monitor` React component prop. The included `LogMonitor` is just an example.
**[In fact I challenge you to build a custom monitor for Redux DevTools!](https://github.com/gaearon/redux-devtools/issues/3)**