Examine source code of Window on yellow wall

{
  "theme": {
    "images": {
      "theme_frame": "007_top.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#d4d4d4"
    }
  },
  "version": "2.0",
  "name": "Window on yellow wall",
  "manifest_version": 2,
  "description": "Window on yellow wall in Lucca, Tuscany.\nFrom my picture on Flickr: <a href=\"https://outgoing.prod.mozaws.net/v1/139413cac9079bf7b2117d5fe49eeabe804fb1fcae6d438a3ae92c33fb7b5b03/http%3A//www.flickr.com/photos/zamm/157425917/\" rel=\"nofollow\">http://www.flickr.com/photos/zamm/157425917/</a>"
}