Examine source code of Time Zone Converter with Weather

{
  "manifest_version": 3,
  "name": "Time Zone Converter by RC",
  "version": "10.0.0",
  "description": "Convert and compare times across multiple time zones. Add cities, drag to reorder, and use the timeline slider to plan across the world.",
  "host_permissions": [
    "https://api.open-meteo.com/*",
    "https://geocoding-api.open-meteo.com/*"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "Time Zone Converter",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "timezone-converter@extension",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}