Examine source code of Procycling

{
  "theme": {
    "images": {
      "theme_frame": "ph-12250.jpg"
    },
    "colors": {
      "frame": "#0f1130",
      "tab_background_text": "#01010d"
    }
  },
  "version": "2.0",
  "name": "Procycling",
  "manifest_version": 2,
  "description": "Procycling manager"
}