Examine source code of Cinderella's Castle

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#fff5d6",
      "tab_background_text": "#850000"
    }
  },
  "version": "2.0",
  "name": "Cinderella's Castle",
  "manifest_version": 2,
  "description": "Cinderella's castle at sunset"
}