Examine source code of Vet threads instagram

{
  "manifest_version": 3,
  "name": "Vet Threads Instagram",
  "version": "2.0",
  "short_name": "Vet Threads",
  "description": "Right-click on any Threads profile to instantly open their Instagram. Also paste any Threads URL in the popup to jump straight to Instagram.",
  "author": "Tek Phreak",
  "developer": {
    "name": "Tek Phreak",
    "url": "https://tekphreak.com"
  },
  "permissions": [
    "contextMenus"
  ],
  "host_permissions": [
    "*://*.threads.net/*",
    "*://*.threads.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "48": "icons/icon48.png",
      "96": "icons/icon96.png"
    }
  },
  "icons": {
    "48": "icons/icon48.png",
    "96": "icons/icon96.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "vet-threads-instagram@tekphreak.com",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}