Examine source code of Rebound Design

{
  "theme": {
    "images": {
      "theme_frame": "reboundheader.png"
    },
    "colors": {
      "frame": "#ff0000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Rebound Design",
  "manifest_version": 2,
  "description": "a firefox skin for Rebound Poems\n<a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/8630d5e7b997a52596eee54d634048306d21c195a261d50a207a027193ca8bab/http%3A//rebound.stickybomb.org\">http://rebound.stickybomb.org</a>"
}