Examine source code of Weather Extension

{
  "name": "Weather",
  "short_name": "Weather",
  "homepage_url": "https://weatherextension.com/",
  "version": "6.0.18",
  "description": "The best way to see the Weather Forecast right in your browser. Easier than looking outside!",
  "icons": {
    "48": "img/icon48.png",
    "128": "img/icon128.png"
  },
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "action": {
    "default_icon": {
      "38": "img/icon38.png"
    },
    "default_title": "Weather",
    "default_popup": "popup.html"
  },
  "manifest_version": 3,
  "permissions": [
    "alarms",
    "storage",
    "geolocation",
    "notifications",
    "idle"
  ],
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+L",
        "mac": "Command+Shift+L"
      }
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a79a9c4c-9c3f-4bf4-9e58-6574cc0b7ecb}"
    }
  }
}