Examine source code of WIlliam Morris - Wardle

{
  "theme": {
    "images": {
      "theme_frame": "WardleHeader.jpg"
    },
    "colors": {
      "frame": "#f2e1c4",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "WIlliam Morris - Wardle",
  "manifest_version": 2,
  "description": "Based on an embroidery design created by William Morris for Elizabeth Wardle"
}