open-consul/ui-v2/app/styles/components/with-tooltip/skin.scss

%tooltip-bubble,
%tooltip-tail {
  color: $white;
  background-color: $gray-800;
}
%tooltip-bubble {
  border-radius: $decor-radius-200;
  box-shadow: 0 3px 1px 0 rgba($black, 0.12);
}