hugo-theme-nocolor/layouts/partials/post_meta.html

<div class="post-meta">
  <time datetime="{{ .Date.Format "2006-01-02T15:04:05Z07:00" }}">
    {{- .Date.Format (cond (isset $.Site.Params "datefmt") $.Site.Params.datefmt "01-02-2006") -}}
  </time>;

  {{- range $taxo := (slice "Categories" "Series" "Tags") }}
    {{- $elems := $.Param $taxo }}
    {{- if $elems }}
  <span class="{{ (lower $taxo) }}">
      {{ $taxo }}: &#x5b;
      {{- range $name := $elems }}
      {{- with $.Site.GetPage (lower (printf "/%s/%s" $taxo (urlize $name))) }}
      <a href="{{ .Permalink }}">{{ $name }}</a>
      {{- end }}
      {{- end }}
      &#x5d;
  </span>
  {{- end }}
  {{- end }}
</div>