Examine source code of Circular Logic

{
  "theme": {
    "images": {
      "theme_frame": "hdcircularlogic.jpg"
    },
    "colors": {
      "frame": "#0085e2",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Circular Logic",
  "manifest_version": 2,
  "description": "Firefox Persona version of my “Circular Logic” wallpaper. \n\n3D artwork by Ryan Bliss. Persona Designed by Mark Hamilton for Digital Blasphemy. \n\nWallpaper available at <a href=\"https://outgoing.prod.mozaws.net/v1/1dfcf3fbcfe10b694bea0421fa4a9dab3798fff3f6f871a12b837db6f40cfc3b/http%3A//www.digitalblasphemy.com/preview.shtml%3Fi=circularlogic\" rel=\"nofollow\">http://www.digitalblasphemy.com/preview.shtml?i=circularlogic</a>"
}