Examine source code of Furfox Tail Blazer

{
  "theme": {
    "images": {
      "theme_frame": "firefoxbanner11.png"
    },
    "colors": {
      "frame": "#cccccc",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Furfox Tail Blazer",
  "manifest_version": 2,
  "description": "I have re-drawn the tail and body of Firefox into a straight line to fit into the browser, it's tail lays along the bar and there is a Firefox logo in the corner."
}