Examine source code of Archivarix Cache Viewer

{
  "manifest_version": 3,
  "name": "__MSG_extName__",
  "description": "__MSG_extDescription__",
  "version": "1.0.0",
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "default_locale": "en",
  "permissions": [
    "contextMenus",
    "activeTab",
    "storage",
    "tabs"
  ],
  "host_permissions": [
    "https://yandexwebcache.net/*",
    "https://ya.ru/*",
    "https://yandex.ru/*",
    "https://yandex.com/*",
    "https://yandex.by/*",
    "https://yandex.kz/*"
  ],
  "optional_host_permissions": [
    "<all_urls>"
  ],
  "action": {
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    },
    "default_title": "Archivarix Cache Viewer",
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "archivarix-cache-viewer@archivarix.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://backorder.ru/*",
        "https://dropcatch.com/*",
        "https://expireddomains.net/*",
        "https://member.expireddomains.net/*",
        "https://www.backorder.ru/*",
        "https://www.dropcatch.com/*",
        "https://www.expireddomains.net/*"
      ],
      "run_at": "document_end",
      "js": [
        "content-scripts/domain-detector.js"
      ]
    },
    {
      "matches": [
        "https://ya.ru/*",
        "https://yandex.by/*",
        "https://yandex.com/*",
        "https://yandex.kz/*",
        "https://yandex.ru/*"
      ],
      "run_at": "document_end",
      "js": [
        "content-scripts/yandex.js"
      ]
    }
  ]
}