Examine source code of Hibisco

{
  "manifest_version": 2,
  "name": "Hibisco",
  "description": "Extensão que adiciona novas funcionalidades para a comunidade do Habblet Hotel, seguindo a Habblet Etiqueta.",
  "version": "21.22.1347",
  "icons": {
    "48": "icon/48.png",
    "128": "icon/128.png"
  },
  "web_accessible_resources": [
    "*.json"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "pauxis@hibisco",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.habblet.city/hotel*"
      ],
      "exclude_matches": [
        "*://*.habblet.city/hotel*hibisco=false*"
      ],
      "run_at": "document_start",
      "js": [
        "content-scripts/isolated.js"
      ],
      "world": "ISOLATED"
    },
    {
      "matches": [
        "*://*.habblet.city/hotel*"
      ],
      "exclude_matches": [
        "*://*.habblet.city/hotel*hibisco=false*"
      ],
      "run_at": "document_start",
      "css": [
        "content-scripts/main.css"
      ],
      "js": [
        "content-scripts/main.js"
      ],
      "world": "MAIN"
    }
  ],
  "permissions": [
    "*://*.habblet.city/hotel*"
  ]
}