Examine source code of AI highlighter

{
  "manifest_version": 2,
  "name": "AI Highlighter",
  "version": "1.4",
  "description": "Summarizes webpages and PDF files, highlighting key passages for easier reading",
  "permissions": [
    "*://*.limesumsar.dk/*",
    "*://limesumsar.dk/*",
    "file://*/*",
    "webNavigation",
    "tabs",
    "storage",
    "webRequest",
    "webRequestBlocking",
    "*://*/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "content.js"
      ],
      "exclude_matches": [
        "*://*/*.pdf"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    "lib/pdf.min.js",
    "lib/pdf.worker.min.js"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "64": "icons/icon-64.png",
      "96": "icons/icon-96.png",
      "128": "icons/icon-128.png"
    }
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "64": "icons/icon-64.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  },
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "browser_specific_settings": {
    "gecko": {
      "id": "{fe66651d-279e-4984-b129-5a0bea37c55e}",
      "strict_min_version": "79.0"
    }
  }
}