Examine source code of Plain Brain Red

{
  "theme": {
    "images": {
      "theme_frame": "plain-brain-red-firefox.jpg"
    },
    "colors": {
      "frame": "#590606",
      "tab_background_text": "#f0f791"
    }
  },
  "version": "2.0",
  "name": "Plain Brain Red",
  "manifest_version": 2,
  "description": "Put your brain to work!\nKevin Patton's\nThe A&amp;P Student (<a href=\"https://outgoing.prod.mozaws.net/v1/25901c661cb8e8b6009280e30cde89f532f287cea4abfca846aded4702081671/http%3A//theAPstudent.org\" rel=\"nofollow\">theAPstudent.org</a>)\nThe A&amp;P Professor (<a href=\"https://outgoing.prod.mozaws.net/v1/1eb109d3ebabe18d27143d1669f01b56bd96e32f73bb4a7da93e66f4d0057f36/http%3A//theAPprofessor.org\" rel=\"nofollow\">theAPprofessor.org</a>)"
}