Examine source code of Touhou_utsuho_background

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#000"
    }
  },
  "version": "2.0",
  "name": "Touhou_utsuho_background",
  "manifest_version": 2,
  "description": "Source image: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/e6910d8aa02dec00a8f868ca6570cf1261a5b37d8126632ac5851d18f64b29ea/http%3A//www.pixiv.net/member_illust.php%3Fmode=medium&amp;illust_id=40169804\">http://www.pixiv.net/member_illust.php?mode=medium&amp;illust_id=40169804</a>"
}