Examine source code of Geek Board

{
  "theme": {
    "images": {
      "theme_frame": "Geekhead.jpg"
    },
    "colors": {
      "frame": "#bfbbbb",
      "tab_background_text": "#4cd8e8"
    }
  },
  "version": "2.0",
  "name": "Geek Board",
  "manifest_version": 2,
  "description": "Geek on circuit board with sky blue text.\nEnjoy."
}