Examine source code of Virtual Chinchillas

{
  "theme": {
    "images": {
      "theme_frame": "adopthead1.jpg"
    },
    "colors": {
      "frame": "#d6e8f1",
      "tab_background_text": "#9000a0"
    }
  },
  "version": "2.0",
  "name": "Virtual Chinchillas",
  "manifest_version": 2,
  "description": "Adopt these Virtual Chinchillas for your Browser and then visit our website to adopt them in our virtual game."
}