Examine source code of foxmosa world

{
  "theme": {
    "images": {
      "theme_frame": "foxmosaworld.PNG"
    },
    "colors": {
      "frame": "#737373",
      "tab_background_text": "#737373"
    }
  },
  "version": "2.0",
  "name": "foxmosa world",
  "manifest_version": 2,
  "description": "foxmosa world"
}