Examine source code of Blueboss Fox

{
  "theme": {
    "images": {
      "theme_frame": "firefoxheader.jpg"
    },
    "colors": {
      "frame": "#808080",
      "tab_background_text": "#1f5c76"
    }
  },
  "version": "2.0",
  "name": "Blueboss Fox",
  "manifest_version": 2,
  "description": "A smooth, blue Firefox persona with simplicity in mind.\nHas bars for text.\nColour has been very carefully balanced in this persona."
}