Examine source code of Readit Fast Fr

{
  "manifest_version": 2,
  "name": "Readit Fast",
  "version": "1.2.5",
  "icons": {
    "16": "img/icon16.png",
    "48": "img/icon64.png",
    "128": "img/icon128.png"
  },
  "description": "Pas le temps d'attendre la fin de votre pub pour acceder a votre article, mon journal en PACA",
  "content_scripts": [
    {
      "matches": [
        "*://www.nicematin.com/*",
        "*://www.varmatin.com/*",
        "*://www.monacomatin.mc/*"
      ],
      "js": [
        "js/content.js"
      ],
      "all_frames": true,
      "run_at": "document_end"
    }
  ],
  "permissions": [
    "tabs",
    "activeTab",
    "storage"
  ],
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "browser_action": {
    "default_icon": "img/pin.png",
    "default_popup": " popup.html"
  }
}