Examine source code of Convert Anything

{
  "manifest_version": 2,
  "name": "Convert Anything",
  "version": "1.0",
  "description": "Quickly convert between different units, currencies, and measurements.",
  "browser_specific_settings": {
    "gecko": {
      "id": "{d91fd58f-32fc-463e-95b9-a01babac6173}",
      "strict_min_version": "112.0"
    }
  },
  "background": {
    "scripts": [
      "background_convert.js"
    ]
  },
  "browser_action": {
    "default_icon": "icon64.png",
    "default_title": "Convert Anything",
    "default_popup": "popup_convert.html"
  },
  "permissions": [
    "storage"
  ],
  "icons": {
    "64": "icon64.png",
    "128": "icon128.png"
  }
}