Examine source code of Arrakis

{
  "theme": {
    "images": {
      "theme_frame": "Dunetop.jpg"
    },
    "colors": {
      "frame": "#2638ff",
      "tab_background_text": "#ffa845"
    }
  },
  "version": "2.0",
  "name": "Arrakis",
  "manifest_version": 2,
  "description": "It's a Dune persona...not stretched out, not with different quality artwork layered over each other, but a simple persona, nonetheless."
}