Examine source code of Soccer - Abstract Field

{
  "theme": {
    "images": {
      "theme_frame": "SockFelAbs-Header.jpg"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#73ff00"
    }
  },
  "version": "2.0",
  "name": "Soccer - Abstract Field",
  "manifest_version": 2,
  "description": "Abstracted soccer field. (Soccer, very often referred to as football)."
}