Examine source code of Haiku DB

{
  "theme": {
    "images": {
      "theme_frame": "hdhaiku2.jpg"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#dbdbdb"
    }
  },
  "version": "2.0",
  "name": "Haiku DB",
  "manifest_version": 2,
  "description": "Firefox Persona version of my “Haiku” wallpaper.\n\n3D artwork by Ryan Bliss.\n\nPersona Designed by Mark Hamilton for Digital Blasphemy.\n\nWallpaper available at <a href=\"https://outgoing.prod.mozaws.net/v1/7c50ed3dc92f445177564c2025f09d92ea0be050fcaad6395faf4d55250c4dfa/http%3A//digitalblasphemy.com/preview.shtml%3Fi=haiku2k72\" rel=\"nofollow\">http://digitalblasphemy.com/preview.shtml?i=haiku2k72</a>"
}