bunteshaus.de/themes/buha/layouts/_default/_markup/render-image.html

{{- if strings.HasPrefix .Destination "http" -}}
    <a href="{{- .Destination -}}" class="no_underline">
        <img loading="lazy" 
            src="{{ .Destination | safeURL }}" 
            alt="{{ .Text }}" 
            {{ with .Title}} title="{{ . }}"{{ end }} />
        <div class="dfjcc">{{ .Text }}</div>
    </a>
{{- else -}}
    {{ if .Page.Resources.ByType "image" }}
        {{ $nr := .Destination }}
        {{- $pic := index (.Page.Resources.ByType "image") (int $nr) -}}
        {{- $image := .Page.Resources.GetMatch (printf "%s" ($pic | safeURL)) -}}
            <div>
                <a href="{{- $image.Permalink -}}" class="no_underline">
                    {{- $permalink := "" -}}

                    {{- if ne $image nil -}}
                    {{- $permalink = $image.RelPermalink -}}
                    {{- else -}}
                    {{- $image = imageConfig (printf "static/%s" (.Destination | safeURL)) -}}
                    {{- $permalink = (printf "/%s" (.Destination | safeURL)) -}}
                    {{- end -}}

                        <div class="dfjcc"><img loading="lazy" 
                        src="{{ $permalink }}" 
                        alt="{{ .Text }}" 
                        {{ with .Title}} title="{{ . }}"{{ end }} 
                        width={{ $image.Width }} 
                        height="{{ $image.Height }}" /></div>
                        <div class="dfjcc">{{ .Text }}</div>
                </a>
            </div>
    {{ end }}
{{- end -}}