Examine source code of Paroot Cashback Assistent

{
  "name": "__MSG_appName__",
  "description": "__MSG_appDesc__",
  "homepage_url": "https://www.paroot.net/",
  "author": "support@paroot.net",
  "version": "2.0.0",
  "manifest_version": 2,
  "default_locale": "en",
  "background": {
    "scripts": [
      "app.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "/assets/img/icon/Icon_disabled_16.png",
      "32": "/assets/img/icon/Icon_disabled_32.png",
      "48": "/assets/img/icon/Icon_disabled_48.png",
      "128": "/assets/img/icon/Icon_disabled_128.png"
    }
  },
  "permissions": [
    "storage",
    "tabs",
    "scripting",
    "http://*/*",
    "https://*/*"
  ],
  "icons": {
    "16": "/assets/img/icon/Icon_16.png",
    "32": "/assets/img/icon/Icon_32.png",
    "48": "/assets/img/icon/Icon_48.png",
    "128": "/assets/img/icon/Icon_128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "paroot-cashback-assistent@paroot.net",
      "strict_min_version": "109.0"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.google.com/search*"
      ],
      "js": [
        "h2.js"
      ],
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": [
    "h2.js",
    "assets/img/Logo.png"
  ]
}