default.css

.graph,
.graph > svg {
  display: block;
}

.graph {
  height: 100%;
  touch-action: none;
  width: 100%;
}

.graph * {
  -webkit-touch-callout: none !important;
  -webkit-user-select: none !important;
  -moz-user-select: none !important;
  -ms-user-select: none !important;
  user-select: none !important;
}

.link {
  fill: none;
  stroke-width: 4px;
}

.node {
  --color-stroke: var(--color-node-stroke, rgba(0, 0, 0, 0.5));

  cursor: pointer;
  stroke: none;
  stroke-width: 2px;
  transition: filter 0.25s ease, stroke 0.25s ease, stroke-dasharray 0.25s ease;
}

.node:hover:not(.focused) {
   filter: brightness(80%);
   stroke: var(--color-stroke);
   stroke-dasharray: 4px;
}

.node.focused {
   stroke: var(--color-stroke);
}

.link__label,
.node__label {
  pointer-events: none;
  text-anchor: middle;
}

.grabbed {
  cursor: grabbing !important;
}