Examine source code of 4G Network

{
  "name": "4G Network",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "internet (2).png"
    },
    "colors": {
      "frame": "rgba(23, 65, 163, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(9, 28, 84, 0.65)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(3, 3, 3, 1)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d5823b3c-2d7f-420c-9b4c-8e955321a3e4}"
    }
  }
}