Examine source code of casa gris

{
  "theme": {
    "images": {
      "theme_frame": "casaenc.jpg"
    },
    "colors": {
      "frame": "#abde4c",
      "tab_background_text": "#142ea1"
    }
  },
  "version": "2.0",
  "name": "casa gris",
  "manifest_version": 2,
  "description": "Un fondo gris con una antigua casa"
}