:root.darkmode {
  filter: invert(1) hue-rotate(.5turn);
}

:root.darkmode :is(div.k2s-preview, img, div.phpbb-ads-center) {
  filter: invert(1) hue-rotate(.5turn);
}

:root.darkmode .headerbar {
	background-image: none;
}

:root.darkmode .site_logo {
  filter: invert(1) hue-rotate(.5turn);
}