Examine source code of Burningman

{
  "theme": {
    "images": {
      "theme_frame": "2007burnr2500_2005157_2500.jpg"
    },
    "colors": {
      "frame": "#b8b4b4",
      "tab_background_text": "#080000"
    }
  },
  "version": "2.0",
  "name": "Burningman",
  "manifest_version": 2,
  "description": "rainbow backlights the 2007 Burningman"
}