Examine source code of House M.D. Black

{
  "theme": {
    "images": {
      "theme_frame": "Persona_Header_LABS.jpg"
    },
    "colors": {
      "frame": "#d9d9d9",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "House M.D. Black",
  "manifest_version": 2,
  "description": "House M.D. Persona for Firefox\n-------\nPersona pour Firefox sur le thème de la série Américaine Dr. House"
}