Examine source code of Punk Domains

{
  "manifest_version": 2,
  "name": "Punk Domains",
  "description": "This extension allows you to access Web3 domains such as .pool, .flr, .op, .smol, etc.",
  "version": "1.5",
  "browser_action": {
    "default_icon": {
      "100": "icons/logo.png"
    },
    "default_title": "Punk Domains",
    "default_popup": "popup/index.html"
  },
  "permissions": [
    "webNavigation",
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "100": "icons/logo.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{2b294de3-64ab-42ce-b403-72d5e926f6c0}"
    }
  }
}