Examine source code of Chinese Tab

{
  "default_locale": "en",
  "manifest_version": 3,
  "name": "__MSG_extName__",
  "version": "0.3",
  "description": "__MSG_extDescription__",
  "browser_specific_settings": {
    "gecko": {
      "id": "support@chinesetab.com"
    }
  },
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "minimum_chrome_version": "110",
  "permissions": [
    "storage"
  ],
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "default": "Alt+S",
        "mac": "Alt+S",
        "chromeos": "Alt+S",
        "linux": "Alt+S",
        "windows": "Alt+S"
      }
    }
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/16.png",
      "32": "icons/32.png",
      "48": "icons/48.png",
      "128": "icons/128.png"
    }
  },
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  }
}