Examine source code of Password Eye

{
  "manifest_version": 3,
  "name": "Password Eye",
  "version": "0.1",
  "description": "Простой инструмент для визуализации паролей на любых сайтах.",
  "browser_specific_settings": {
    "gecko": {
      "id": "password-eye-simple@frigusick.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "permissions": [
    "scripting"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "style.css"
      ],
      "all_frames": true
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "open.mp3"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ]
}