Examine source code of PEPE_IRK

{
  "theme": {
    "images": {
      "theme_frame": "IRK1encabezado.png"
    },
    "colors": {
      "frame": "#fafafa",
      "tab_background_text": "#fcf9f9"
    }
  },
  "version": "2.0",
  "name": "PEPE_IRK",
  "manifest_version": 2,
  "description": "Creado para los alumnos del Instituto"
}