Examine source code of Perth Heat Baseball

{
  "theme": {
    "images": {
      "theme_frame": "perth_heat_header.jpg"
    },
    "colors": {
      "frame": "#948c8c",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Perth Heat Baseball",
  "manifest_version": 2,
  "description": "Perth Heat of the Australian Baseball League"
}