Examine source code of Highlight Search & Copy

{
  "manifest_version": 3,
  "name": "Highlight Search & Copy",
  "version": "1.1",
  "description": "Search or copy highlighted text with a convenient popup that also comes with a Imperial to Metric converter",
  "permissions": [
    "activeTab",
    "storage",
    "clipboardWrite"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{9ce00efa-18b1-4640-bf6a-99c5a25c2e78}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  }
}