Examine source code of Netflix International

{
  "manifest_version": 3,
  "name": "Netflix International",
  "description": "Displays all available Netflix audio and subtitle tracks.",
  "version": "2.0.25",
  "author": "shirt",
  "action": {
    "default_icon": "img/icon128.png",
    "default_popup": "pages/options.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "netflix-international@shirt"
    }
  },
  "icons": {
    "48": "img/icon48.png",
    "128": "img/icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://netflix.com/*",
        "*://www.netflix.com/*"
      ],
      "all_frames": true,
      "css": [
        "netflix.css"
      ],
      "js": [
        "content_script.js"
      ],
      "run_at": "document_start"
    }
  ],
  "options_ui": {
    "page": "pages/options.html",
    "open_in_tab": true
  },
  "web_accessible_resources": [
    {
      "resources": [
        "cadmium-playercore-shim.js",
        "netflix_max_bitrate.js",
        "netflix.css"
      ],
      "matches": [
        "*://assets.nflxext.com/*",
        "*://netflix.com/*",
        "*://www.netflix.com/*"
      ]
    }
  ],
  "declarative_net_request": {
    "rule_resources": [
      {
        "id": "1",
        "enabled": true,
        "path": "rules.json"
      }
    ]
  },
  "permissions": [
    "storage",
    "declarativeNetRequestWithHostAccess"
  ],
  "host_permissions": [
    "*://assets.nflxext.com/*",
    "*://netflix.com/*",
    "*://www.netflix.com/*"
  ]
}