Examine source code of Cute Copier

{
  "manifest_version": 2,
  "name": "Cute Copier",
  "version": "1.0.1",
  "description": "Copy page title and URL as clickable HTML link",
  "author": "till@tillcarlos.com",
  "browser_specific_settings": {
    "gecko": {
      "id": "till@tillcarlos.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "activeTab",
    "clipboardWrite",
    "<all_urls>"
  ],
  "browser_action": {
    "default_title": "Copy link to clipboard (Ctrl+Shift+U)",
    "default_icon": {
      "48": "icons/icon-48.svg",
      "96": "icons/icon-96.svg"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "commands": {
    "copy-link": {
      "suggested_key": {
        "default": "Ctrl+Shift+U",
        "mac": "Command+Shift+U"
      },
      "description": "Copy page as link"
    }
  }
}