Examine source code of Sphynx on a Cloud

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#8c97a3",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Sphynx on a Cloud",
  "manifest_version": 2,
  "description": "Cute hairless cat with pale blue eyes."
}