Examine source code of Dark Top

{
  "name": "Dark Top",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "FFTest.jpg"
    },
    "colors": {
      "frame": "rgba(67, 68, 71, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(255, 255, 255, 1)",
      "toolbar_field_text": "rgba(10, 10, 10, 1)",
      "tab_line": "rgba(179, 173, 173, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a071eb70-8292-477d-98ae-a89593531db3}"
    }
  }
}