Examine source code of von Mainberg

{
  "theme": {
    "images": {
      "theme_frame": "graf-mhg2.jpg"
    },
    "colors": {
      "frame": "#e0a020",
      "tab_background_text": "#0d0d0d"
    }
  },
  "version": "2.0",
  "name": "von Mainberg",
  "manifest_version": 2,
  "description": "Gräfin / Graf von Mainberg Style"
}