Examine source code of Go Firebirds

{
  "theme": {
    "images": {
      "theme_frame": "Blotch-FirebirdsLogo.jpg"
    },
    "colors": {
      "frame": "#8a3c00",
      "tab_background_text": "#f2e3af"
    }
  },
  "version": "2.0",
  "name": "Go Firebirds",
  "manifest_version": 2,
  "description": "American Football Firebirds Logo from the novel, Out of Position by Kyell Gold, artwork by Blotch (<a href=\"https://outgoing.prod.mozaws.net/v1/5d02f73d2f5bf039c303a83c7bd7abfb94582b5b46388cc7a7d374013aca2aa5/http%3A//www.screwbald.com\" rel=\"nofollow\">www.screwbald.com</a>)"
}