grey content area -> white content area

Author: vonovak

website/versioned_docs/version-3.x/hello-react-navigation.md

@@ -43,7 +43,7 @@ export default createAppContainer(AppNavigator);
 
 <a href="https://snack.expo.io/@react-navigation/hello-world-v3" target="blank" class="run-code-button">&rarr; Run this code</a>
 
-If you run this code, you will see a screen with an empty navigation bar and a grey content area containing your `HomeScreen` component. The styles you see for the navigation bar and the content area are the default configuration for a stack navigator, we'll learn how to configure those later.
+If you run this code, you will see a screen with an empty navigation bar and a white content area containing your `HomeScreen` component. The styles you see for the navigation bar and the content area are the default configuration for a stack navigator, we'll learn how to configure those later.
 
 > The casing of the route name doesn't matter -- you can use lowercase `home` or capitalized `Home`, it's up to you. We prefer capitalizing our route names.