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html.nighttime {
	/*	background: black !important; */
}
html.nighttime body {
  filter: invert(1) hue-rotate(90deg);
}
/* Un-invert images and buttons */
html.nighttime img {
	filter: invert(1) hue-rotate(90deg);
}
html.nighttime .oo-ui-buttonElement-button {
	background: #333 !important;
	color: white !important;
	filter: invert(1) hue-rotate(300deg);
}
html.nighttime .oo-ui-iconElement-icon {
	filter: invert(1) hue-rotate(300deg);
}