Examine source code of View from the Nile

{
  "theme": {
    "images": {
      "theme_frame": "nileHeader.jpg"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#ff9933"
    }
  },
  "version": "2.0",
  "name": "View from the Nile",
  "manifest_version": 2,
  "description": "A view of the banks of the Nile from the Elephantine Isles near Aswan, Egypt."
}