Examine source code of Paranoi4k

{
  "name": "Paranoi4k Extension",
  "description": "Extension officiel de @paranoi4k, soyez averti lorsqu'un live Twitch est lancé",
  "version": "4.0",
  "developer": {
    "name": "Zaekof",
    "url": "https://twitter.com/Zaekof"
  },
  "manifest_version": 2,
  "minimum_opera_version": "53.0",
  "permissions": [
    "identity",
    "storage",
    "alarms",
    "notifications",
    "tabs",
    "unlimitedStorage"
  ],
  "background": {
    "page": "background.html"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "update_url": "https://clients2.google.com/service/update2/crx"
}