Examine source code of Trackmania Scenes

{
  "theme": {
    "images": {
      "theme_frame": "PersonaH3.jpg"
    },
    "colors": {
      "frame": "#a6a6a6",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Trackmania Scenes",
  "manifest_version": 2,
  "description": "This Persona features two pictures from the racing game Trackmania. I decided to try making my own and see what would come out.\n\nThe left one was taken and edited by Heinso/Revilo\n\nThe right one was taken and edited by d!plo"
}