Examine source code of Chibi Cows

{
  "theme": {
    "images": {
      "theme_frame": "chibicows3.jpg"
    },
    "colors": {
      "frame": "#79917a",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Chibi Cows",
  "manifest_version": 2,
  "description": "Chibi Cows~ Credit for picture @ <a href=\"https://outgoing.prod.mozaws.net/v1/bd79ff49fdbbdc8d422470dc99b315f5b3812aec2a693c3da7b8cb94c97ea26c/http%3A//tehchibipanda.deviantart.com/\" rel=\"nofollow\">http://tehchibipanda.deviantart.com/</a>"
}