Examine source code of Private-SearXNG

{
  "manifest_version": 2,
  "name": "Private-SearXNG",
  "version": "1",
  "author": "Collaborative",
  "default_locale": "fr",
  "description": "Use local SearXNG, a Privacy Search Engine, as the default search engine for firefox",
  "icons": {
    "48": "searxng48.webp"
  },
  "browser_action": {
    "default_title": "SearXNG"
  },
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "64.0",
      "id": "{34503401-6f15-4993-9ebc-1d7bcdb66d4e}"
    }
  },
  "chrome_settings_overrides": {
    "search_provider": {
      "name": "SearXNG",
      "keyword": "@searxng, @searx, @sx",
      "search_url": "http://localhost:9090/search?q={searchTerms}",
      "favicon_url": "searxng128.webp",
      "suggest_url": "http://localhost:9090/autocompleter?q={searchTerms}",
      "is_default": true
    }
  }
}