Examine source code of smile24

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#d6d1c9",
      "tab_background_text": "#472f1b"
    }
  },
  "version": "2.0",
  "name": "smile24",
  "manifest_version": 2,
  "description": "a piece of restfull time with the help of .... mozilla\nmodern portrait of a classical beauty"
}