Examine source code of SearXNG Search Engine

{
  "manifest_version": 2,
  "name": "SearXNG",
  "version": "1.0.0",
  "description": "SearXNG Search Engine",
  "applications": {
    "gecko": {
      "id": "searxng-inetol-search@local",
      "strict_min_version": "78.0"
    }
  },
  "permissions": [],
  "chrome_settings_overrides": {
    "search_provider": {
      "name": "SearXNG",
      "keyword": "sx",
      "search_url": "https://search.inetol.net/search?q={searchTerms}",
      "favicon_url": "https://search.inetol.net/favicon.ico",
      "encoding": "UTF-8",
      "is_default": true
    }
  }
}