Examine source code of dark carbon fox

{
  "theme": {
    "images": {
      "theme_frame": "PERSONA1HEADER.PNG"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#b3b3b3"
    }
  },
  "version": "2.0",
  "name": "dark carbon fox",
  "manifest_version": 2,
  "description": "this is my first one thanks to <a href=\"https://outgoing.prod.mozaws.net/v1/cb9fee376d4f35bd4bc93afd54a7d567108dfd193c40207ddb9d3a309bc92906/http%3A//www.iconspedia.com/\" rel=\"nofollow\">http://www.iconspedia.com/</a>  for the icon used"
}