Examine source code of Gintama Ride

{
  "theme": {
    "images": {
      "theme_frame": "Gintama_Ride_Header.jpg"
    },
    "colors": {
      "frame": "#494796",
      "tab_background_text": "#25a7de"
    }
  },
  "version": "2.0",
  "name": "Gintama Ride",
  "manifest_version": 2,
  "description": "Gintama; Gintoki; Kagura; Sadaharu"
}