Examine source code of world earth

{
  "theme": {
    "images": {
      "theme_frame": "earth-map.jpg"
    },
    "colors": {
      "frame": "#e81919",
      "tab_background_text": "#eb1a1a"
    }
  },
  "version": "2.0",
  "name": "world earth",
  "manifest_version": 2,
  "description": "world earth"
}