rggraph {
  background-color: #232729;
  background-size: 8px 8px;
  background-image: repeating-linear-gradient(0deg, #2e2e2e, #2e2e2e 1px, transparent 1px, transparent 8px),
                    repeating-linear-gradient(-90deg, #2e2e2e, #2e2e2e 1px, transparent 1px, transparent 8px);
}
