react-navigation/examples/ReduxExample/app.json

{
  "expo": {
    "name": "ReduxExample",
    "description": "Try out react-navigation with this awesome Redux example",
    "version": "1.0.0",
    "slug": "ReduxExample",
    "privacy": "public",
    "orientation": "portrait",
    "primaryColor": "#cccccc",
    "icon": "./assets/icons/react-navigation.png",
    "loading": {
      "icon": "./assets/icons/react-navigation.png",
      "hideExponentText": false
    },
    "sdkVersion": "27.0.0",
    "entryPoint": "./node_modules/react-native-scripts/build/bin/crna-entry.js",
    "packagerOpts": {
      "assetExts": ["ttf", "mp4"]
    },
    "ios": {
      "supportsTablet": true
    }
  }
}