Examine source code of Werder

{
  "theme": {
    "images": {
      "theme_frame": "werder.jpg"
    },
    "colors": {
      "frame": "#f4f7f4",
      "tab_background_text": "#f4f7f4"
    }
  },
  "version": "2.0",
  "name": "Werder",
  "manifest_version": 2,
  "description": "Werder Bremen Design"
}