Examine source code of Magnifying Glass

{
  "manifest_version": 3,
  "version": "0.1.2",
  "name": "Magnifying Glass",
  "description": "Convert your mouse cursor to a high-quality magnifying glass",
  "permissions": [
    "storage",
    "activeTab",
    "scripting",
    "contextMenus"
  ],
  "homepage_url": "https://webextension.org/listing/magnifying-glass.html",
  "background": {
    "service_worker": "worker.js",
    "scripts": [
      "worker.js"
    ]
  },
  "icons": {
    "16": "data/icons/16.png",
    "32": "data/icons/32.png",
    "48": "data/icons/48.png",
    "64": "data/icons/64.png",
    "128": "data/icons/128.png",
    "256": "data/icons/256.png",
    "512": "data/icons/512.png"
  },
  "action": {},
  "browser_specific_settings": {
    "gecko": {
      "id": "{16f963cb-ddd7-4af6-b60d-13269ac96e2a}",
      "strict_min_version": "128.0"
    }
  }
}