blowfish/layouts/_default/_markup/render-image.html

{{ $disableImageOptimization := .Page.Site.Params.disableImageOptimization | default false }}
{{ $url := urls.Parse .Destination }}
{{ $altText := .Text }}
{{ $caption := .Title }}
{{ if findRE "^https?" $url.Scheme }}
  <figure>
    <img class="my-0 rounded-md" loading="lazy" src="{{ $url.String }}" alt="{{ $altText }}" />
    {{ with $caption }}<figcaption>{{ . | markdownify }}</figcaption>{{ end }}
  </figure>
{{ else }}
  {{ $resource := "" }}
  {{ if $.Page.Resources.GetMatch ($url.String) }}
    {{ $resource = $.Page.Resources.GetMatch ($url.String) }}
  {{ else if resources.GetMatch ($url.String) }}
    {{ $resource = resources.Get ($url.String) }}
  {{ end }}
  {{ with $resource }}
    <figure>
      {{ if $disableImageOptimization }}
      <img
        class="my-0 rounded-md"
        loading="lazy"
        src="{{ .RelPermalink }}"
        alt="{{ $altText }}"
      />
      {{ else }}
      <img
        class="my-0 rounded-md"
        loading="lazy"
        srcset="
        {{ (.Resize "330x").RelPermalink }} 330w,
        {{ (.Resize "660x").RelPermalink }} 660w,
        {{ (.Resize "1024x").RelPermalink }} 1024w,
        {{ (.Resize "1320x").RelPermalink }} 2x"
        src="{{ (.Resize "660x").RelPermalink }}"
        alt="{{ $altText }}"
      />
      {{ end }}
      {{ with $caption }}<figcaption>{{ . | markdownify }}</figcaption>{{ end }}
    </figure>
  {{ else }}
    <figure>
      <img class="my-0 rounded-md" loading="lazy" src="{{ $url.String }}" alt="{{ $altText }}" />
      {{ with $caption }}<figcaption>{{ . | markdownify }}</figcaption>{{ end }}
    </figure>
  {{ end }}
{{ end }}