Examine source code of Github Search

{
  "manifest_version": 2,
  "name": "Github Search",
  "version": "0.0.1",
  "description": "Search Github from URL bar",
  "icons": {
    "64": "icons/github64.png"
  },
  "chrome_settings_overrides": {
    "search_provider": {
      "name": "Github Search",
      "search_url": "https://github.com/search?q={searchTerms}",
      "favicon_url": "https://github.githubassets.com/images/modules/logos_page/GitHub-Mark.png",
      "keyword": "github"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a52207b2-359b-48e5-9ace-c1b3a23201bf}",
      "strict_min_version": "55.0"
    }
  }
}