Examine source code of Dog Age Calculator

{
  "manifest_version": 3,
  "name": "Dog Age Calculator",
  "version": "1.0.0",
  "description": "Calculate your dog's approximate age in human years by entering their birth month and year.",
  "author": "Dog Age Hub - https://dogagehub.com/",
  "icons": {
    "48": "icons/icon48.png",
    "96": "icons/icon96.png"
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icons/icon48.png",
      "96": "icons/icon96.png"
    },
    "default_title": "Dog Age Calculator"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "@dogagecalculator",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}