Examine source code of Monument Valley

{
  "theme": {
    "images": {
      "theme_frame": "MonumentValley-Header.jpg"
    },
    "colors": {
      "frame": "#747d91",
      "tab_background_text": "#44386b"
    }
  },
  "version": "2.0",
  "name": "Monument Valley",
  "manifest_version": 2,
  "description": "Monument Valley - Pictured from the North looking Southwest during an epic motorcycle trip - 2008"
}