Examine source code of Black Sabbath - Mob Rules

{
  "theme": {
    "images": {
      "theme_frame": "Persona_black_sabbath_mob_rules_top.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Black Sabbath - Mob Rules",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/8e7ec0bafd61be9078c88756e460141e9a4f63fede6e4a7434de98152908b284/http%3A//ximmix.mixeriksson.com\" rel=\"nofollow\">http://ximmix.mixeriksson.com</a> [metal, heavy metal, hard rock, Dio, Ronnie James Dio]"
}