Examine source code of Bone Tissue Dark

{
  "theme": {
    "images": {
      "theme_frame": "bone-tissue-dark-firefox.jpg"
    },
    "colors": {
      "frame": "#d4a342",
      "tab_background_text": "#fafaf7"
    }
  },
  "version": "2.0",
  "name": "Bone Tissue Dark",
  "manifest_version": 2,
  "description": "Compact bone dark and low contrast for easier viewing in your browser\nfrom Kevin Patton's websites\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/v1/8f17153dce11b58dd8f0d6b972557a166f9978ea88e7d10ca3eb28f467a387c3/http%3A//theAPprofesor.org\" rel=\"nofollow\">theAPprofesor.org</a>)"
}