Examine source code of Meteoflow° Weather

{
  "manifest_version": 3,
  "name": "Meteoflow° Weather",
  "version": "2.0.0",
  "description": "Current weather and hourly forecast at a glance",
  "permissions": [
    "storage",
    "alarms"
  ],
  "host_permissions": [
    "https://api.meteoflow.com/*",
    "https://meteoflow.com/*",
    "https://ws.meteoflow.com/*",
    "https://tiles.meteoflow.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "meteoflow-weather@meteoflow.com",
      "strict_min_version": "112.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "action": {
    "default_popup": "index.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png"
    },
    "default_title": "Meteoflow° Weather"
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "background": {
    "scripts": [
      "service-worker.js"
    ],
    "type": "module"
  }
}