Examine source code of Google Translate

{
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "all_frames": true,
      "run_at": "document_end",
      "js": [
        "code/selection-translate.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{2cefb8a4-2f03-436c-b6b5-870d944f5ffd}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "description": "Translate selected text and full pages in place as you browse. Instant popup translations, Google Translate, language switch, and on",
  "default_locale": "en",
  "icons": {
    "128": "icons/icon.png"
  },
  "host_permissions": [
    "*://*/*"
  ],
  "short_name": "Translate",
  "background": {
    "scripts": [
      "code/translate-background.js"
    ]
  },
  "options_ui": {
    "page": "options.html"
  },
  "version": "5.0.2",
  "manifest_version": 3,
  "action": {
    "default_title": "Translate",
    "default_popup": "popup.html",
    "default_icon": {
      "128": "icons/icon.png"
    }
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self';"
  },
  "permissions": [
    "storage",
    "tabs",
    "contextMenus",
    "declarativeNetRequest"
  ],
  "name": "Google Translate In Page"
}