Examine source code of Kagi Search

{
  "name": "Kagi",
  "description": "An extension which makes your default search Kagi and redirects you to kagi.com if you go to Google, Bing, Yahoo, Yandex, Baidu or Sogou",
  "author": "Oscar Sanderson",
  "homepage_url": "https://kagi.com/",
  "version": "2.1",
  "manifest_version": 2,
  "icons": {
    "48": "Kagi_48.png"
  },
  "permissions": [
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "incognito": "not_allowed",
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  },
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+K",
        "mac": "Command+MacCtrl+K"
      },
      "toggle-feature": {
        "suggested_key": {
          "default": "Ctrl+Shift+K+S",
          "mac": "Command+MacCtrl+S"
        },
        "description": "Send a 'toggle-feature' event to the extension"
      }
    }
  },
  "chrome_settings_overrides": {
    "search_provider": {
      "favicon_url": "https://kagi.com/favicon.ico",
      "is_default": true,
      "encoding": "UTF-8",
      "keyword": "k",
      "name": "Kagi",
      "search_url": "https://kagi.com/search?q={searchTerms}",
      "suggest_url": "https://kagi.com/api/autosuggest?q={searchTerms}"
    }
  },
  "browser_action": {
    "default_icon": "Kagi.png",
    "default_popup": "extension.html"
  }
}