Examine source code of nader

{
  "name": "nader",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "3958.jpg"
    },
    "colors": {
      "frame": "rgba(124, 148, 92, 1)",
      "tab_background_text": "rgba(22, 242, 37, 1)",
      "toolbar": "rgba(66, 48, 48, 1)",
      "bookmark_text": "rgba(168, 101, 101, 1)",
      "toolbar_field": "rgba(237, 52, 52, 1)",
      "toolbar_field_text": "rgba(69, 150, 88, 1)",
      "tab_line": "rgba(166, 214, 112, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8b9d846d-f341-478e-84c1-d088a8f78b50}"
    }
  }
}