Examine source code of Red Winter

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#1f1838",
      "tab_background_text": "#e5d4ff"
    }
  },
  "version": "2.0",
  "name": "Red Winter",
  "manifest_version": 2,
  "description": "Design created using the cover art for the book Red Winter by Annette Marie.\n\n<a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/4091ae5b85c7bb7d26bd3449507ba63c04e00a5391575e0854298ce4cb350818/http%3A//www.authorannettemarie.com/\">http://www.authorannettemarie.com/</a>"
}