Examine source code of Anti-Messaggero

{
  "manifest_version": 2,
  "name": "Anti-Messaggero",
  "version": "1.5.0",
  "description": "Automatically remove the paywall that blocks a user from reading an article and the pop-up containing the video attached to it.",
  "homepage_url": "https://github.com/lorenzodb1/anti-messaggero",
  "icons": {
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "64": "icons/icon-64.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png",
    "192": "icons/icon-192.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.ilmessaggero.it/*/*"
      ],
      "js": [
        "jquery-3.4.1.js",
        "antimessaggero.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{41308cc1-2054-409e-97ba-72e213d6126f}"
    }
  }
}