Examine source code of JayxHalf - Warrior Cats

{
  "theme": {
    "images": {
      "theme_frame": "HalfxJayFirefoxHeader.png"
    },
    "colors": {
      "frame": "#040078",
      "tab_background_text": "#cfd5ff"
    }
  },
  "version": "2.0",
  "name": "JayxHalf - Warrior Cats",
  "manifest_version": 2,
  "description": "Jayfeather and Half Moon from the Warriors series by Erin Hunter.\nLineart by <a href=\"https://outgoing.prod.mozaws.net/v1/e1327ad7dec69b8e80960b46fb7fa03a873c0e761406da1a534a1d9d8a53ec9c/http%3A//wildpathofshadowclan.deviantart.com\" rel=\"nofollow\">wildpathofshadowclan.deviantart.com</a>"
}