Examine source code of AES Serpent

{
  "theme": {
    "images": {
      "theme_frame": "aes.JPG"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#361818"
    }
  },
  "version": "2.0",
  "name": "AES Serpent",
  "manifest_version": 2,
  "description": "AES-256 browser persona, for the high security boxes.\n\n-This is a test "
}