add param to customize the featured image in page and site header

- Add the param to the example with an explanation
- It can also be used to add more classes for futher customization if needed

exampleSite/config.toml

@@ -34,6 +34,8 @@ site_logo = ""
 description = "The last theme you'll ever need. Maybe."
 # choose a background color from any on this page: https://tachyons.io/docs/themes/skins/ and preface it with "bg-"
 background_color_class = "bg-black"
+# choose an alignment style for the featured image from "bg-top|bg-center|bg-bottom", or add any other class space-separated to customize further
+featured_image_class = "bg-top"
 recent_posts_number = 3
 
 [[params.ananke_socials]]

layouts/partials/page-header.html

@@ -1,7 +1,7 @@
 {{ $featured_image := partial "func/GetFeaturedImage.html" . }}
 {{ if $featured_image }}
   {{/* Trimming the slash and adding absURL make sure the image works no matter where our site lives */}}
-  <header class="cover bg-{{ .Params.featured_image_alignment | default "top" }}" style="background-image: url('{{ $featured_image }}');">
+  <header class="cover {{ .Params.featured_image_class | .Site.Params.featured_image_class | default "bg-top" }}" style="background-image: url('{{ $featured_image }}');">
     <div class="bg-black-60">
       {{ partial "site-navigation.html" . }}
       <div class="tc-l pv6 ph3 ph4-ns">

layouts/partials/site-header.html

@@ -1,7 +1,7 @@
 {{ $featured_image := partial "func/GetFeaturedImage.html" . }}
 {{ if $featured_image }}
   {{/* Trimming the slash and adding absURL make sure the image works no matter where our site lives */}}
-  <header class="cover bg-top" style="background-image: url('{{ $featured_image }}');">
+  <header class="cover {{ .Site.Params.featured_image_class | default "bg-top" }}" style="background-image: url('{{ $featured_image }}');">
     <div class="{{ .Site.Params.cover_dimming_class | default "bg-black-60" }}">
       {{ partial "site-navigation.html" .}}
       <div class="tc-l pv4 pv6-l ph3 ph4-ns">