Examine source code of Dark-Night Red

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Dark-Red accent",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgba(0, 0, 0, 0)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(0, 0, 0, 0)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(255, 0, 4)",
      "popup": "rgb(0, 0, 0)",
      "popup_text": "rgb(255, 255, 255)",
      "frame_inactive": "rgb(60, 0, 0)",
      "icons_attention": "rgb(211, 22, 24)",
      "ntp_background": "rgb(0, 0, 0)",
      "popup_border": "rgb(60, 60, 60)",
      "popup_highlight": "rgb(219, 40, 40)",
      "sidebar_border": "rgb(0, 0, 0)",
      "sidebar_highlight_text": "rgb(255, 255, 255)",
      "sidebar_highlight": "rgb(154, 0, 2)",
      "sidebar_text": "rgb(255, 255, 255)",
      "sidebar": "rgb(0, 0, 0)",
      "tab_background_separator": "rgba(121, 18, 18, 0)",
      "tab_loading": "rgb(75, 27, 28)",
      "tab_selected": "rgba(145, 13, 13, 0)",
      "toolbar_bottom_separator": "rgba(0, 0, 0, 0)",
      "toolbar_field_border_focus": "rgb(184, 48, 49)",
      "toolbar_field_border": "rgba(0, 0, 0, 0)",
      "toolbar_field_focus": "rgb(0, 0, 0)",
      "toolbar_field_highlight_text": "rgb(255, 255, 255)",
      "toolbar_field_separator": "rgba(4, 4, 4, 0)",
      "toolbar_field_text_focus": "rgb(255, 255, 255)",
      "toolbar_top_separator": "rgba(0, 0, 0, 0)"
    }
  }
}