Examine source code of Clockwork Mozilla

{
  "theme": {
    "images": {
      "theme_frame": "clockworkmozilla-Copy.jpg"
    },
    "colors": {
      "frame": "#d40000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Clockwork Mozilla",
  "manifest_version": 2,
  "description": "yeah"
}