Examine source code of Noterva Reference Manager

{
  "manifest_version": 3,
  "name": "Scholar Vault — Citation Extractor",
  "version": "2.8.0",
  "description": "Extract citations (APA/MLA/Chicago/IEEE, RIS/BibTeX/CSV) from Google Scholar, web pages, and PDFs. 100% private.",
  "permissions": [
    "tabs",
    "scripting",
    "clipboardWrite",
    "storage"
  ],
  "host_permissions": [
    "<all_urls>",
    "https://api.unpaywall.org/*",
    "https://api.openalex.org/*",
    "https://api.crossref.org/*"
  ],
  "action": {
    "default_title": "Scholar Vault",
    "default_popup": "popup.html"
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle",
      "all_frames": true,
      "match_about_blank": true
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "vendor/pdf.min.js",
        "vendor/pdf.worker.min.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "scholarvault@thewritingproject.me",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}