Examine source code of Which way

{
  "theme": {
    "images": {
      "theme_frame": "symboltop.jpg"
    },
    "colors": {
      "frame": "#b8afaf",
      "tab_background_text": "#a1a1a1"
    }
  },
  "version": "2.0",
  "name": "Which way",
  "manifest_version": 2,
  "description": "Which way would you like to go?"
}