Examine source code of Multi-Language Dictionary

{
  "manifest_version": 2,
  "name": "Multi-Language Dictionary",
  "version": "1.0",
  "description": "Translate and look up words in multiple languages.",
  "permissions": [
    "storage",
    "activeTab"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "Multi-Language Dictionary"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f393345a-b8dc-4ac9-88a3-d0b016fe6fe8}"
    }
  }
}