Examine source code of netscape-2-1

{
  "name": "netscape-2-1",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "netscape-03.gif"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(209, 209, 209, 1)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(47, 84, 196, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7705ad96-276d-4490-b65c-a8728c7b8235}"
    }
  }
}