{{ with .Title | default .Site.Title }} {{ end }} {{ with .Description | default .Site.Params.subtitle }} {{ end }} {{ with .Params.thumbnail }} {{ end }} {{ with .Site.Params.twitter }} {{ end }} {{ if .IsPage }} {{ with .Site.Params.facebook }} {{ end }} {{ else }} {{ end }} {{ .Hugo.Generator -}} {{- with .Site.Params.favicon }} {{- end -}} {{ if eq .URL "/" }} {{ end }} {{ partial "head_custom.html" . }}