Examine source code of ManUtd...Old Trafford

{
  "theme": {
    "images": {
      "theme_frame": "header-7.jpg"
    },
    "colors": {
      "frame": "#75de60",
      "tab_background_text": "#ebe399"
    }
  },
  "version": "2.0",
  "name": "ManUtd...Old Trafford",
  "manifest_version": 2,
  "description": "The famous stadium of the famous club. this is just the beginning. more to come..."
}