static/admin/css/dark_mode.css

@media (prefers-color-scheme: dark) {
    :root {
      --primary: #264b5d;
      --primary-fg: #f7f7f7;
  
      --body-fg: #eeeeee;
      --body-bg: #121212;
      --body-quiet-color: #e0e0e0;
      --body-loud-color: #ffffff;
  
      --breadcrumbs-link-fg: #e0e0e0;
      --breadcrumbs-bg: var(--primary);
  
      --link-fg: #81d4fa;
      --link-hover-color: #4ac1f7;
      --link-selected-fg: #6f94c6;
  
      --hairline-color: #272727;
      --border-color: #353535;
  
      --error-fg: #e35f5f;
      --message-success-bg: #006b1b;
      --message-warning-bg: #583305;
      --message-error-bg: #570808;
  
      --darkened-bg: #212121;
      --selected-bg: #1b1b1b;
      --selected-row: #00363a;
  
      --close-button-bg: #333333;
      --close-button-hover-bg: #666666;
    }
  }