Examine source code of Building Light

{
  "theme": {
    "images": {
      "theme_frame": "cityheader.jpg"
    },
    "colors": {
      "frame": "#080000",
      "tab_background_text": "#cbcff2"
    }
  },
  "version": "2.0",
  "name": "Building Light",
  "manifest_version": 2,
  "description": "From one of my favourite designs that I've created. \nIf you check out <a href=\"https://outgoing.prod.mozaws.net/v1/696ae1e96a319353d5bfc1df725973dfef85da48a13fa2c7f5f69966aa309f02/http%3A//ergart.tumblr.com\" rel=\"nofollow\">ergart.tumblr.com</a> it will be posted... eventually. I know. Exciting."
}