.wall-shell {
  background-color: #d8d1c7;
  background-image:
    linear-gradient(45deg, #c9c1b6 25%, transparent 25%),
    linear-gradient(-45deg, #c9c1b6 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #c9c1b6 75%),
    linear-gradient(-45deg, transparent 75%, #c9c1b6 75%);
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
  background-size: 16px 16px;
}

#wallCanvas {
  background: transparent;
  box-shadow: 0 0 0 1px var(--ink);
}

.minimap canvas {
  background: #f4f1eb;
  image-rendering: pixelated;
}