Examine source code of poor moonrat

{
  "theme": {
    "images": {
      "theme_frame": "X-KH-gimplogofirefox.6.2.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#c4c4c4"
    }
  },
  "version": "2.0",
  "name": "poor moonrat",
  "manifest_version": 2,
  "description": "cool photo -- the earthcat eats the moonrat ...:D"
}