Examine source code of netscape-4-1

{
  "name": "netscape-4-1",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Imagen-animada-Netscape-04.gif"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(156, 143, 186, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{23e70e08-8177-4f61-8c24-52e1dc6f0e9a}"
    }
  }
}