Examine source code of HotelRunner POS Ticket

{
  "manifest_version": 2,
  "name": "HotelRunner POS Ticket",
  "version": "1.0.1",
  "description": "Transforme automatiquement les folios HotelRunner en format ticket POS pour impression",
  "author": "Developer",
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "permissions": [
    "storage",
    "https://*.hotelrunner.com/*"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icon16.png",
      "48": "icon48.png",
      "128": "icon128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.hotelrunner.com/admin/pms/folios/*/print*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "styles.css"
      ],
      "run_at": "document_end"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{5f630877-3bbc-4079-b42b-d8a9e8c37920}",
      "strict_min_version": "58.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}