Examine source code of BBC Sherlocked

{
  "theme": {
    "images": {
      "theme_frame": "sherlockKopie.jpg"
    },
    "colors": {
      "frame": "#706c6c",
      "tab_background_text": "#bab4b4"
    }
  },
  "version": "2.0",
  "name": "BBC Sherlocked",
  "manifest_version": 2,
  "description": "Sherlock, BBC, Watson, John, Holmes, Series, british, detective, Benedict Cumberbatch, Martin Freeman, Sherlock Holmes, grey, black, sherlocked"
}