Examine source code of Clever Cloud Detector

{
  "manifest_version": 2,
  "version": "1.0.2",
  "name": "__MSG_extensionName__",
  "description": "__MSG_extensionDescription__",
  "author": "David Sferruzza",
  "default_locale": "en",
  "permissions": [
    "dns",
    "storage",
    "webNavigation",
    "activeTab",
    "<all_urls>"
  ],
  "icons": {
    "48": "up_/assets/unknown.svg",
    "96": "up_/assets/unknown.svg"
  },
  "background": {
    "scripts": [
      "background.ecf25aa5.js"
    ],
    "persistent": false
  },
  "web_accessible_resources": [
    "_locales/en/messages.js",
    "_locales/fr/messages.js",
    "up_/assets/no.svg",
    "up_/assets/unknown.svg",
    "up_/assets/yes.svg"
  ],
  "page_action": {
    "default_icon": "up_/assets/unknown.svg"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7dfa9578-e530-46fc-bec6-d479ae31b6ba}"
    }
  }
}