chromium/chrome/test/data/extensions/api_test/notifications/api/notification_on_blur/manifest.json

{
  "name": "Packaged App - launches notification on blur",
  "description": "A test app which creates a window which creates a notification when the window is blurred.",
  "version": "1.0",
  "manifest_version": 2,
  "app": {
    "background": {
      "scripts": ["main.js"]
    }
  },
  "permissions": [
    "notifications"
  ]
}