Examine source code of Simple Pleasures DB

{
  "theme": {
    "images": {
      "theme_frame": "simpleheader.jpg"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Simple Pleasures DB",
  "manifest_version": 2,
  "description": "Firefox Persona version of my “Simple Pleasures” wallpaper. 3D artwork by Ryan Bliss. Persona Designed by Mark Hamilton for Digital Blasphemy. Wallpaper available at <a href=\"https://outgoing.prod.mozaws.net/v1/09d79848d9b87b167f6dfd102096750cf3511582da9280f8d7cf6e1899395018/http%3A//digitalblasphemy.com/preview.shtml%3Fi=simple\" rel=\"nofollow\">http://digitalblasphemy.com/preview.shtml?i=simple</a>"
}