Examine source code of Missing Sherlock

{
  "theme": {
    "images": {
      "theme_frame": "missing_you.jpg"
    },
    "colors": {
      "frame": "#3399cc",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Missing Sherlock",
  "manifest_version": 2,
  "description": "Doctor John Watson (Martin Freeman) contemplates Sherlock Holmes during series 2 (season 2) of BBC's \"Sherlock\"."
}