Examine source code of Semper Fi Marines

{
  "theme": {
    "images": {
      "theme_frame": "0000UNITEDSTATESMARINECORPSBANNER.FIREFOX.3.jpg"
    },
    "colors": {
      "frame": "#1d0aab",
      "tab_background_text": "#d6f50e"
    }
  },
  "version": "2.0",
  "name": "Semper Fi  Marines",
  "manifest_version": 2,
  "description": "Easily the best Marine Corps Persona you can get.  Try it, you will like it.\n\nSemper Fi"
}