blog/layouts/shortcodes/img.html

{{ $src := .Get "src" }}
{{ $pageImage := .Page.Resources.Get $src }}
{{ $siteImage := resources.Get $src }}
{{ $origImage := $pageImage | default $siteImage }}
{{ if eq $origImage.MediaType.SubType "svg" }}
    <img src="{{ $origImage.RelPermalink }}" alt='{{ .Get "alt" }}'>
{{ else }}
    {{ $resizeAdd := .Get "resizeAdd" | default "" }}
    {{ $resize := printf "%s%s" (.Get "resize" | default "720x webp Lanczos ") $resizeAdd }}
    {{ $image := $origImage.Resize $resize }}
    <a href="{{ $origImage.RelPermalink }}">
        <img src="{{ $image.RelPermalink }}" alt='{{ .Get "alt" }}'>
    </a>
{{ end }}