Examine source code of Chicago Cubs 1

{
  "theme": {
    "images": {
      "theme_frame": "cubsheader.jpg"
    },
    "colors": {
      "frame": "#0e0af7",
      "tab_background_text": "#f70d0d"
    }
  },
  "version": "2.0",
  "name": "Chicago Cubs 1",
  "manifest_version": 2,
  "description": "Chicago skyline with  Go Cubs! in lights"
}