Examine source code of Letterboxd Search

{
  "manifest_version": 2,
  "name": "Letterboxd Search",
  "version": "1.0",
  "description": "Search letterboxd.com for movies, directors, actors, reviews ...",
  "icons": {
    "196": "letterboxd.png"
  },
  "chrome_settings_overrides": {
    "search_provider": {
      "name": "Letterboxd",
      "search_url": "https://letterboxd.com/search/{searchTerms}/",
      "keyword": "lbxd",
      "favicon_url": "https://s.ltrbxd.com/static/img/icons/touch-icon-192x192.4ccd4e0e.png",
      "encoding": "UTF-32"
    }
  }
}