Examine source code of firefox nature drop

{
  "theme": {
    "images": {
      "theme_frame": "foxdropnew.JPG"
    },
    "colors": {
      "frame": "#658232",
      "tab_background_text": "#658232"
    }
  },
  "version": "2.0",
  "name": "firefox nature drop",
  "manifest_version": 2,
  "description": "firefox nature drop water pond natural reflection modern coll water design enjoy !"
}