/* Small cluster (few points) */
.marker-cluster-small {
  background-color: rgba(222, 239, 252, 0.3) !important;
}
.marker-cluster-small div {
  background-color: #2dd287 !important;  /* OD blue? */
  color: #ffffff !important;
}

/* Medium cluster */
.marker-cluster-medium {
  background-color: rgba(232, 245, 233, 0.3) !important;
}
.marker-cluster-medium div {
  background-color: #e16400 !important;  /* green */
  color: #ffffff !important;
}

/* Large cluster */
.marker-cluster-large {
  background-color: rgba(255, 235, 238, 0.3) !important;
}
.marker-cluster-large div {
  background-color: #91004b !important;  /* red */
  color: #ffffff !important;
}