Examine source code of Tiger Stripes

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#945d16",
      "tab_background_text": "#ffefd6"
    }
  },
  "version": "2.0",
  "name": "Tiger Stripes",
  "manifest_version": 2,
  "description": "Stock credit: Tibor Fazakas\n<a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/243d3759e8756f37ba066ac14cd1f625e3bd12b0afbd104d4aa9707128fb06a8/http%3A//www.freeimages.com/photographer/ftibor-49706\">http://www.freeimages.com/photographer/ftibor-49706</a>"
}