Examine source code of The Hyena

{
  "theme": {
    "images": {
      "theme_frame": "hyena_firefox_theme_header_high.jpg"
    },
    "colors": {
      "frame": "#132b00",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "The Hyena",
  "manifest_version": 2,
  "description": "Simple picture of a Hyena laying in the mud in a field."
}