Examine source code of C.N.G.E.I.

{
  "theme": {
    "images": {
      "theme_frame": "top_gei.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#000"
    }
  },
  "version": "2.0",
  "name": "C.N.G.E.I.",
  "manifest_version": 2,
  "description": "A Firefox Persona to customize your browser like all the Italian scouts have to. CNGEI is the national girls and boy lay scout association."
}