Examine source code of Nord Darker Theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Nord Dark Theme",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(59, 66, 82)",
      "toolbar_text": "rgb(236, 239, 244)",
      "frame": "rgb(46, 52, 64)",
      "tab_background_text": "rgb(216, 222, 233)",
      "toolbar_field": "rgb(76, 86, 106)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(129, 161, 193)",
      "popup": "rgb(67, 76, 94)",
      "popup_text": "rgb(236, 239, 244)",
      "tab_loading": "rgb(129, 161, 193)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7d0794d4-c310-4da1-a824-1e6555a75510}"
    }
  }
}