Examine source code of England World Cup Flow

{
  "theme": {
    "images": {
      "theme_frame": "englandhigh.jpg"
    },
    "colors": {
      "frame": "#eb0000",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "England World Cup Flow",
  "manifest_version": 2,
  "description": "England Football Theme. Done for Mac version don't know if it will work with Windows or Linux versions."
}