@adobe/spectrum-css/dist/components/asset/index-diff.css

The Spectrum CSS top-level backwards compatible package

.spectrum--large .spectrum-Asset-image {
  transition: opacity 130ms;
}
.spectrum--large .spectrum-Asset-folder,
.spectrum--large .spectrum-Asset-file {
  min-width: 60px;
  max-width: 80px;
  margin: 25px;
}