Examine source code of Coffee Stains

{
  "theme": {
    "images": {
      "theme_frame": "coffeestainheader.jpeg"
    },
    "colors": {
      "frame": "#543509",
      "tab_background_text": "#785a1e"
    }
  },
  "version": "2.0",
  "name": "Coffee Stains",
  "manifest_version": 2,
  "description": "Get into the office spirit with this coffee- stained persona!"
}