**_NOTE_** Supported React Native version is `>= 0.43`. Please downgrade RNDebugger version to `0.7.21` if you're using older versions of React Native.
The React DevTools is built by [`react-devtools-core/standalone`](https://github.com/facebook/react-devtools/tree/master/packages/react-devtools-core#requirereact-devtools-corestandalone), this is same with element inspector of [`Nuclide`](https://nuclide.io/docs/platforms/react-native/#debugging__element-inspector).
It will open a WebSocket server to waiting React Native connection. The connection already included in React Native (see [`setupDevtools.js`](https://github.com/facebook/react-native/blob/master/Libraries/Core/Devtools/setupDevtools.js)), it will keep trying to connect the React DevTools server in development mode, it should works well without specify anything, unless you need to set the server hostname for [use it with real device](#how-to-use-it-with-real-device).
You can read the section [`Integration with React Native Inspector`](https://github.com/facebook/react-devtools/tree/master/packages/react-devtools#integration-with-react-native-inspector) from README of `react-devtools`, we have the same usage with the package.
## Change theme of Chrome DevTools with React DevTools together
You can change Chrome DevTools theme (Default / Dark), the theme of React DevTools will be changed together if you have no selected another theme for React DevTools:
**_NOTE_** Currently Chrome DevTools (Electron) doesn't reload automatically, we need to `Toggle Developer Tools` twice (Application menu or `⌥+⌘+I` (`Ctrl+Alt+I`)), subscribe [#87](https://github.com/jhen0409/react-native-debugger/issues/87) for tracking the issue.