Examine source code of Unduck Helper

{
  "manifest_version": 3,
  "name": "Unduck Helper",
  "version": "0.1.2",
  "description": "Helper extension for Unduck to autofill searches on sites which don't support it natively.",
  "homepage_url": "https://github.com/HuckleberryLovesYou/unduck-extension",
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "*://gemini.google.com/app*",
    "*://docs.timmatheis.com/*",
    "*://search.timmatheis.com/*",
    "*://localhost/*",
    "*://copilot.microsoft.com/*"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "Unduck Helper Settings"
  },
  "content_scripts": [
    {
      "matches": [
        "*://gemini.google.com/app*",
        "*://docs.timmatheis.com/*",
        "*://search.timmatheis.com/*",
        "*://localhost/*",
        "*://copilot.microsoft.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "unduck-extension@timmatheis.com",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "web_accessible_resources": [
    {
      "resources": [
        "icons/icon128.png",
        "icons/favicon.svg"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "chrome_settings_overrides": {
    "search_provider": {
      "name": "Unduck",
      "search_url": "https://search.timmatheis.com?q={searchTerms}",
      "keyword": "ud",
      "favicon_url": "/icons/favicon.svg",
      "encoding": "UTF-8",
      "is_default": true
    }
  }
}