Examine source code of Newegg search engine

{
  "manifest_version": 2,
  "name": "Newegg search engine",
  "description": "Adds a search engine that searches Newegg.com",
  "version": "1.2",
  "icons": {
    "48": "icon-245.png",
    "96": "icon-245.png"
  },
  "web_accessible_resources": [
    "icon-245.png"
  ],
  "chrome_settings_overrides": {
    "search_provider": {
      "name": "Newegg",
      "search_url": "https://www.newegg.com/p/pl?utm_medium=FFExtension&d={searchTerms}",
      "keyword": "@newegg",
      "favicon_url": "https://c1.neweggimages.com/WebResource/Themes/2005/Nest/Newegg.ico",
      "is_default": false,
      "encoding": "UTF-8"
    }
  },
  "browser_action": {
    "default_icon": "icon-245.png",
    "default_title": "Newegg Search Engine",
    "default_popup": "popup/index.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  }
}