Examine source code of Happy Micro Pig

{
  "theme": {
    "images": {
      "theme_frame": "MicroPigs.jpg"
    },
    "colors": {
      "frame": "#cfc7c7",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Happy Micro Pig",
  "manifest_version": 2,
  "description": "Happy micro pigs, micro pigs that don't grow more than a few centimetres and are super sweet."
}