Examine source code of fox tail firefox

{
  "theme": {
    "images": {
      "theme_frame": "foxtailtest.PNG"
    },
    "colors": {
      "frame": "#ebd66f",
      "tab_background_text": "#ebd66f"
    }
  },
  "version": "2.0",
  "name": "fox tail firefox",
  "manifest_version": 2,
  "description": "fox tail firefox"
}