Examine source code of red wolf dark

{
  "manifest_version": 2,
  "version": "1.2",
  "name": "red wolf",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(139, 24, 26)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(115, 22, 24)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(154, 53, 55)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "toolbar_field_border_focus": "rgb(18, 78, 138)",
      "toolbar_field_highlight": "rgb(18, 78, 138)",
      "tab_line": "rgb(139, 24, 26)",
      "popup": "rgb(139, 24, 26)",
      "popup_text": "rgb(255, 255, 255)",
      "popup_highlight": "rgb(18, 78, 138)",
      "popup_border": "rgb(18, 78, 138)",
      "tab_loading": "rgb(18, 78, 138)",
      "sidebar_border": "rgb(18, 78, 138)",
      "ntp_background": "#2b2a33",
      "ntp_text": "#ffffff"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d0401cb3-4dfa-4e11-971f-7979754fdac8}"
    }
  }
}