Examine source code of Einstein Mysterious FF4

{
  "theme": {
    "images": {
      "theme_frame": "einsteinmysterious.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Einstein Mysterious FF4",
  "manifest_version": 2,
  "description": "The most beautiful and deepest experience a man can have is the sense of the mystery. Albert Einstein, famous quotes, saparris"
}