Examine source code of DISENGISED Persona

{
  "theme": {
    "images": {
      "theme_frame": "firefoxpersona1.jpg"
    },
    "colors": {
      "frame": "#ffb0b0",
      "tab_background_text": "#333333"
    }
  },
  "version": "2.0",
  "name": "DISENGISED Persona",
  "manifest_version": 2,
  "description": "DISENGISED custom firefox persona. Using our characteristic film grain you can use this persona as a token of loyalty for having used our web-design services."
}