Examine source code of JoJ

{
  "manifest_version": 2,
  "name": "JoJ",
  "short_name": " Notifications Twitch",
  "description": "Etre au courant quand JoJ est en live, accéder au planning de la semaine et liens vers les réseaux sociaux",
  "version": "1.9.3",
  "author": "Azamir",
  "permissions": [
    "notifications",
    "activeTab",
    "storage",
    "https://twitch.tv/*",
    "https://discordapp.com/invite/*",
    "https://twitter.com/*",
    "https://www.youtube.com/channel/*"
  ],
  "browser_action": {
    "default_icon": "img/JoJ_radius_64.png",
    "default_popup": "popup.html"
  },
  "icons": {
    "64": "img/JoJ_radius_64.png",
    "128": "img/JoJ_radius_128.png",
    "256": "img/JoJ_radius_256.png"
  },
  "background": {
    "scripts": [
      "js/app.js",
      "js/jquery.js",
      "js/config.js",
      "js/background.js"
    ]
  }
}