Examine source code of amarok2

{
  "theme": {
    "images": {
      "theme_frame": "theme_firefox.jpg"
    },
    "colors": {
      "frame": "#e6e6e6",
      "tab_background_text": "#333"
    }
  },
  "version": "2.0",
  "name": "amarok2",
  "manifest_version": 2,
  "description": "simple grey theme, optimized for mac os x."
}