rohanverma.net/themes/after-dark/docs/layouts/shortcodes/include.html

<!-- {{/*
Named attributes: "type", "file"
Positional params: 0 {file}

With base64-encoded inline image in markdown:
![Theme screenshots](data:image/png;base64,{{< include type="image" file="themes/after-dark/images/docs/minimal-mac.png" >}})

Combined with highlight shortcode for syntax highlighting:
{{< highlight shell "linenos=inline" >}}
{{< include "themes/after-dark/bin/install" >}}
{{< /highlight >}}

*/}} -->

{{- $type := .Get "type" }}
{{- $file := .Get "file" }}
{{- if and .IsNamedParams }}
  {{- if eq $type "image" }}{{ readFile $file | base64Encode }}{{ end -}}
  {{- if eq $type "source" }}{{ readFile $file | safeHTML }}{{ end -}}
{{ else }}
  {{- readFile (.Get 0) | safeHTML -}}
{{ end -}}