Examine source code of Blank face

{
  "theme": {
    "images": {
      "theme_frame": "face1head.jpg"
    },
    "colors": {
      "frame": "#f5f062",
      "tab_background_text": "#e3d1d1"
    }
  },
  "version": "2.0",
  "name": "Blank face",
  "manifest_version": 2,
  "description": "Watching you ..."
}