Examine source code of DOI search engine

{
  "manifest_version": 2,
  "name": "DOI search engine",
  "description": "Adds a search engine that links to doi.org (Digital Object Identifier)",
  "homepage_url": "https://github.com/cvergari/DOI_search",
  "icons": {
    "48": "icons/48.png",
    "96": "icons/96.png"
  },
  "version": "1.1",
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "92.0",
      "id": "{a5f0dc67-a4e4-4ad0-a674-5c118e129358}"
    }
  },
  "chrome_settings_overrides": {
    "search_provider": {
      "name": "DOI search engine",
      "search_url": "https://www.doi.org/{searchTerms}",
      "keyword": "doi",
      "favicon_url": "icons/16.png",
      "is_default": false,
      "encoding": "UTF-8"
    }
  }
}