Examine source code of MyCleanPC SafeSearch

{
  "name": "MyCleanPC SafeSearch",
  "version": "1.1.1",
  "description": "Simple, powerful extension for a safe search experience.",
  "manifest_version": 3,
  "permissions": [
    "scripting",
    "storage",
    "webRequest",
    "search"
  ],
  "host_permissions": [
    "https://safesearch.mycleanpc.com/",
    "https://install.cybertrends.co/"
  ],
  "action": {},
  "background": {
    "scripts": [
      "service-worker.js"
    ]
  },
  "chrome_settings_overrides": {
    "search_provider": {
      "name": "MyCleanPC SafeSearch",
      "keyword": "mcpc",
      "favicon_url": "mycpc-s-resources/icons/icon-128.png",
      "encoding": "UTF-8",
      "is_default": true,
      "search_url": "https://safesearch.mycleanpc.com/search?q={searchTerms}&o=wx&a=wx"
    }
  },
  "icons": {
    "48": "mycpc-s-resources/icons/icon-48.png",
    "96": "mycpc-s-resources/icons/icon-96.png",
    "128": "mycpc-s-resources/icons/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "safesearch@mycleanpc.com"
    }
  }
}