Examine source code of Perplexity Omnibox

{
  "manifest_version": 3,
  "name": "Perplexity Omnibox",
  "description": "Omnibox for search using Perplexity AI",
  "author": "Mr.Manit Treeprapankit",
  "version": "1.0.4",
  "icons": {
    "16": "icons/16x16.png",
    "32": "icons/32x32.png",
    "48": "icons/48x48.png",
    "64": "icons/64x64.png",
    "128": "icons/128x128.png"
  },
  "chrome_settings_overrides": {
    "search_provider": {
      "name": "Perplexity",
      "search_url": "https://www.perplexity.ai/search?q={searchTerms}",
      "favicon_url": "icons/16x16.png",
      "keyword": "@px",
      "is_default": false
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "perplexity_omnibox@8columns.com"
    }
  }
}