{{ $image := .image }} {{ $type := .type | default "page" }} {{ $layout := .layout | default "item" }} {{ $sizes := site.Params.image_sizes.sections.pages.item }} {{ with index site.Params.image_sizes.sections $type }} {{ with index . $layout }} {{ $sizes = . }} {{ end }} {{ end }} {{ if .sizes }} {{ $sizes = .sizes }} {{ end }}