Examine source code of one & only cinderella

{
  "theme": {
    "images": {
      "theme_frame": "jhy.png"
    },
    "colors": {
      "frame": "#e8bcbc",
      "tab_background_text": "#c28ac1"
    }
  },
  "version": "2.0",
  "name": "one & only cinderella",
  "manifest_version": 2
}