Examine source code of SparK_

{
  "theme": {
    "images": {
      "theme_frame": "spark_header.jpg"
    },
    "colors": {
      "frame": "#969696",
      "tab_background_text": "#401300"
    }
  },
  "version": "2.0",
  "name": "SparK_",
  "manifest_version": 2,
  "description": "This is a persona from one of my own creation. You can see the original one at <a href=\"https://outgoing.prod.mozaws.net/v1/e70f01902826f277fac126be7e5a4d3f1d21b4216eca100af2e199bb3b478c2e/http%3A//elreviae.deviantart.com\" rel=\"nofollow\">elreviae.deviantart.com</a>. (go to my gallery to view more :)"
}