Examine source code of MVPtracker Advanced

{
  "manifest_version": 3,
  "name": "Better Guiderz.com / MVPtracker.net",
  "version": "2.9",
  "description": "Calcule la différence entre l'heure de mort du MVP et l'heure actuelle, avec auto-login et affichage des faiblesses.",
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "http://mvptracker.net/*",
    "http://guiderz.com/*"
  ],
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "96": "icons/icon96.png",
    "128": "icons/icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "http://mvptracker.net/tracker/*",
        "http://guiderz.com/tracker/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "action": {
    "default_title": "Better MVP Tracker"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "better-mvp-tracker@friflix.eu",
      "strict_min_version": "109.0"
    }
  }
}