Examine source code of Undertaker Tanoshi

{
  "theme": {
    "images": {
      "theme_frame": "undertakerpersonaheader.jpg"
    },
    "colors": {
      "frame": "#b8e6e5",
      "tab_background_text": "#363636"
    }
  },
  "version": "2.0",
  "name": "Undertaker Tanoshi",
  "manifest_version": 2,
  "description": "It's The Undertaker from Kuroshitsuji.'nough said."
}