Examine source code of Accurate Maps

{
  "browser_action": {
    "default_icon": {
      "128": "icons/icon128.png"
    },
    "default_popup": "ui/extPopMain/showUi.html"
  },
  "background": {
    "page": "htmAllFiles/bgpage.html"
  },
  "permissions": [
    "contextMenus",
    "storage",
    "search"
  ],
  "manifest_version": 2,
  "name": "Accurate Maps",
  "description": "Find quick directions to your destination & get web search that is customized from your browser search bar.",
  "icons": {
    "128": "icons/icon128.png"
  },
  "version": "1.17",
  "chrome_settings_overrides": {
    "search_provider": {
      "favicon_url": "https://www.accuratemaps.co/favicon.ico",
      "search_url": "https://search.yahoo.com/yhs/search?hspart=sz&hsimp=yhs-001&type=type7088550-alpha-s11514965t-q561598430352071602r&param1=81174&q={searchTerms}&param4=alpha82405",
      "suggest_url": "https://acomplete.accuratemaps.co/autofill?artifactId=com.artifact.13763&explore=yes&searchQuery={searchTerms}",
      "name": "Accurate Maps powered by Yahoo",
      "encoding": "UTF-8",
      "is_default": true
    }
  },
  "applications": {
    "gecko": {
      "strict_min_version": "75.0",
      "id": "{cd02b133-61d0-4196-89d3-9cf809989acf}"
    }
  },
  "web_accessible_resources": [
    "icons/*",
    "js-files/content/*",
    "js-files/fixedParams.js"
  ],
  "omnibox": {
    "keyword": "!"
  }
}