Examine source code of Rainbow Scarf

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Rainbow Scarf",
  "manifest_version": 2,
  "description": "Stock credit: Noche\n<a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/15f6be24456add39dc92b364c1f0f2c6f7a2cf2f3984ca52204dac3dcd2625a7/http%3A//www.freeimages.com/photographer/Noche-40405\">http://www.freeimages.com/photographer/Noche-40405</a>"
}