Examine source code of mijisou search engine

{
  "manifest_version": 2,
  "name": "mijisou search engine",
  "description": "Adds a search engine that searches by mijisou.com",
  "version": "1.1",
  "applications": {
    "gecko": {
      "strict_min_version": "65.0",
      "id": "dev@entropage.com"
    }
  },
  "chrome_settings_overrides": {
    "search_provider": {
      "name": "mijisou",
      "search_url": "https://www.mijisou.com/search?q={searchTerms}",
      "keyword": "miji",
      "favicon_url": "https://www.mijisou.com/favicon.ico",
      "is_default": false,
      "encoding": "UTF-8"
    }
  }
}