Examine source code of Copy Decoded URL

{
  "manifest_version": 3,
  "name": "Copy Decoded URL",
  "version": "0.2.2",
  "author": "hms5232",
  "description": "Quickly copy the decoded URL with a click.",
  "homepage_url": "https://github.com/hms5232/firefox-copy-decoded-url",
  "icons": {
    "48": "icons/btn-48.png",
    "96": "icons/btn-96.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0f693142-6faf-4ba6-b423-1542da3ee2d1}",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "activeTab",
    "clipboardWrite"
  ],
  "action": {
    "default_icon": "icons/btn-96.png",
    "default_title": "Copy Decoded URL"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  }
}