Examine source code of Circles & Steel

{
  "theme": {
    "images": {
      "theme_frame": "Head5.jpg"
    },
    "colors": {
      "frame": "#8f8f8f",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Circles & Steel",
  "manifest_version": 2,
  "description": "Just a black steel background with an arcane circle and a rune. Both were taken from the deviantART user \"redheadstock\":\n<a href=\"https://outgoing.prod.mozaws.net/v1/486c6a5c66d51ed19fff61c9ab90848a109ed73a832d69cb8859e95084493260/http%3A//redheadstock.deviantart.com/\" rel=\"nofollow\">http://redheadstock.deviantart.com/</a>\n\nInspired by the persona called \"Arcane\", you can see it there:\n<a href=\"https://outgoing.prod.mozaws.net/v1/579823e63a1cbd9ab74aef35f7df318b2e3fcc558a7c134cfa682e829bd5256c/http%3A//www.getpersonas.com/en-US/persona/2400\" rel=\"nofollow\">http://www.getpersonas.com/en-US/persona/2400</a>"
}