Examine source code of Weather Forecast Special

{
  "manifest_version": 2,
  "name": "Weather Forecast Extension",
  "version": "1.0",
  "description": "Displays detailed weather forecasts, severe weather alerts, and air quality index for your location.",
  "permissions": [
    "activeTab",
    "geolocation",
    "https://api.openweathermap.org/"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "32": "icons/logo_32.png",
      "64": "icons/logo_64.png",
      "128": "icons/logo_128.png"
    }
  },
  "icons": {
    "32": "icons/logo_32.png",
    "64": "icons/logo_64.png",
    "128": "icons/logo_128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ad748b87-5d0e-4251-a1db-f75c16f2158b}"
    }
  }
}