Examine source code of icecold

{
  "theme": {
    "images": {
      "theme_frame": "Icecold-Kopfzeile.png"
    },
    "colors": {
      "frame": "#d1d1d1",
      "tab_background_text": "#dbf5ff"
    }
  },
  "version": "2.0",
  "name": "icecold",
  "manifest_version": 2,
  "description": "Eisschollen"
}