Examine source code of Familiste

{
  "manifest_version": 2,
  "name": "Familiste",
  "version": "0.2.0",
  "description": "Gérer ses listes Familiste simplement, en quelques clics !",
  "homepage_url": "https://www.familiste.com/",
  "icons": {
    "16": "icons/familiste.png",
    "48": "icons/familiste.png",
    "128": "icons/familiste.png"
  },
  "permissions": [
    "tabs",
    "https://www.familiste.com/*"
  ],
  "browser_action": {
    "default_icon": "icons/familiste.png",
    "default_title": "Familiste",
    "default_popup": "index.html"
  },
  "author": "Familiste",
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  }
}