Examine source code of Computer OS

{
  "theme": {
    "images": {
      "theme_frame": "Untitledpershead2.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Computer OS",
  "manifest_version": 2,
  "description": "I hope you´ll like it.\nI made it with Gimp and <a href=\"https://outgoing.prod.mozaws.net/v1/6c67a6544621a57268c52dc018bb2366122a90d2da6787c748d3da03b6b64347/http%3A//Paint.net\" rel=\"nofollow\">Paint.net</a>.\nEverybpdy can use and change it."
}