Examine source code of Dark Valentine

{
  "theme": {
    "images": {
      "theme_frame": "DarkValentineH.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Dark  Valentine",
  "manifest_version": 2,
  "description": "butterfly, collage, dark, flowers, hearts, romantic, Valentines Day My wallpaper to match is at: <a href=\"https://outgoing.prod.mozaws.net/v1/1e1831d5322eb0a4c307c4c53281a658ba1919eb7775792bdd24aea560041f62/http%3A//abstract.desktopnexus.com/wallpaper/949285/\" rel=\"nofollow\">http://abstract.desktopnexus.com/wallpaper/949285/</a>"
}