@adobe/spectrum-css/dist/components/rule/colorStops/darkest.css

The Spectrum CSS top-level backwards compatible package

.spectrum-Rule--large {
  background-color: rgb(200, 200, 200);
}
.spectrum-Rule--medium {
  background-color: rgb(57, 57, 57);
}
.spectrum-Rule--small {
  background-color: rgb(57, 57, 57);
}