Examine source code of Shogunner

{
  "theme": {
    "images": {
      "theme_frame": "mozillaCustom_header.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Shogunner",
  "manifest_version": 2,
  "description": "Recipe for a Shogunner:\n1 mech\n1 samurai\n1 pilot\n\nMix liberally and voila!"
}