Examine source code of Yankee stadiums

{
  "theme": {
    "images": {
      "theme_frame": "banner.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#030b59"
    }
  },
  "version": "2.0",
  "name": "Yankee stadiums",
  "manifest_version": 2,
  "description": "All 3 Yankee stadiums with pinstripes and the Yankee logo"
}