Examine source code of Odd Future Doughnuts

{
  "theme": {
    "images": {
      "theme_frame": "Oddfuturepersona.jpg"
    },
    "colors": {
      "frame": "#756f6f",
      "tab_background_text": "#f7efef"
    }
  },
  "version": "2.0",
  "name": "Odd Future Doughnuts",
  "manifest_version": 2,
  "description": "Oddfuture"
}