Examine source code of Ultrabreaker Danger

{
  "theme": {
    "images": {
      "theme_frame": "ub-danger.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Ultrabreaker Danger",
  "manifest_version": 2,
  "description": "A stained-glass looking alternate persona, featuring an enemy from Ultrabreaker. Ultrabreaker is a breakout-type game coming soon: <a href=\"https://outgoing.prod.mozaws.net/v1/d18e6a650a2aaf97ff469055e70ec0769c3407b58601799e919c7136e38daafa/http%3A//ultrabreaker.com/\" rel=\"nofollow\">http://ultrabreaker.com/</a>"
}