Examine source code of Sherlock BBC wallpaper

{
  "name": "loki_in_thor_2-2560x1440",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "Sherlock-wallpaper-sherlock-on-bbc-one-33019561-1600-900.jpg"
    },
    "colors": {
      "toolbar": "rgba(0, 0, 0, 1)",
      "frame": "rgba(0, 0, 0, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "bookmark_text": "rgba(240, 240, 218, 1)"
    }
  }
}