Examine source code of Christmas Cactus

{
  "theme": {
    "images": {
      "theme_frame": "CcactusHead.jpg"
    },
    "colors": {
      "frame": "#7c74f2",
      "tab_background_text": "#f2eded"
    }
  },
  "version": "2.0",
  "name": "Christmas Cactus",
  "manifest_version": 2,
  "description": "Our Son's Christmas cactus had these beautiful blooms in February"
}