Examine source code of Barney

{
  "theme": {
    "images": {
      "theme_frame": "_20070308_schnell_Firefox2.jpg"
    },
    "colors": {
      "frame": "#b54646",
      "tab_background_text": "#decece"
    }
  },
  "version": "2.0",
  "name": "Barney",
  "manifest_version": 2,
  "description": "schnellster Terrier weit und breit"
}