Examine source code of Empty Space

{
  "theme": {
    "images": {
      "theme_frame": "spacepersonacopy.png"
    },
    "colors": {
      "frame": "#ded1c7",
      "tab_background_text": "#daf5f2"
    }
  },
  "version": "2.0",
  "name": "Empty Space",
  "manifest_version": 2,
  "description": "All the textures come from Google Earth; so thank you Google."
}