Examine source code of Left 4 dead Witch

{
  "theme": {
    "images": {
      "theme_frame": "l4dheader.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#b51f1f"
    }
  },
  "version": "2.0",
  "name": "Left 4 dead Witch",
  "manifest_version": 2,
  "description": "Its the witch from l4d.  on you're firefox.\n\nIf you like it,  or have any sugestions to improve send me an email @\n\nMuneris@live.com "
}