Examine source code of Prime Currency Converter

{
  "name": "Prime Currency Converter",
  "version": "1.1.0.0",
  "description": "The Best Free Currency Converter and Exchanger integration with browser. Prime is a Simple and powerful real-time currency converter Extention thats save your time and money.  ",
  "manifest_version": 2,
  "icons": {
    "128": "icon28.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_icon": "logo.png"
  }
}