Examine source code of Gone Broke Racing

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Gone Broke Racing",
  "manifest_version": 2,
  "description": "<a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/036ed9423d2530bd819431ef4423065374dd348af4ecee4506a643ab42ea6742/http%3A//www.gonebrokeracing.com\">www.gonebrokeracing.com</a> theme"
}