Examine source code of Cataclysm_Deathwing

{
  "theme": {
    "images": {
      "theme_frame": "Cataclysm_Firefox_Header.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#f59700"
    }
  },
  "version": "2.0",
  "name": "Cataclysm_Deathwing",
  "manifest_version": 2,
  "description": "Cataclysm the new WoW expansion."
}