Examine source code of Route with Google Maps

{
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "description": "__MSG_extensionDescription__",
  "version": "1.3resigned1",
  "homepage_url": "https://github.com/dwiedner/route-with-google-maps",
  "default_locale": "en",
  "applications": {
    "gecko": {
      "id": "route-with-google-maps-addon@daniel-wiedner.de"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "48": "GoogleMaps.svg",
    "96": "GoogleMaps.svg"
  },
  "options_ui": {
    "page": "options/index.html",
    "browser_style": true
  },
  "permissions": [
    "contextMenus",
    "storage"
  ]
}