documize/gui/app/styles/core/ui/ui-tooltip.scss

// https://github.com/kybishop/ember-attacher

.ember-attacher-tooltip {
	font-size: 0.9rem !important;
	padding: 0.5rem 0.75rem !important;
	background-color: map-get($gray-shades, 600) !important;

	> div {
		background-color: map-get($gray-shades, 600) !important;
	}
}