Examine source code of tiled wall

{
  "theme": {
    "images": {
      "theme_frame": "tiled.jpg"
    },
    "colors": {
      "frame": "#dbcca7",
      "tab_background_text": "#473a3a"
    }
  },
  "version": "2.0",
  "name": "tiled wall",
  "manifest_version": 2,
  "description": "tiled pattern"
}