hugo-theme-relearn/assets/css/auto.css

{{- $assetBusting := partialCached "assetbusting.gotmpl" . -}}
@import "{{ printf "%s-%s.css%s" .prefix .light $assetBusting }}" screen and (prefers-color-scheme: light);
@import "{{ printf "%s-%s.css%s" .prefix .dark $assetBusting }}" screen and (prefers-color-scheme: dark);