use 'dark' class locally in header, hero or custom sections. adapt dark styles.

themes/hugoplate/layouts/partials/essentials/footer.html

@@ -1,3 +1,4 @@
+<div class="dark">
 <footer class="bg-theme-light dark:bg-darkmode-theme-light">
   <div class="container">
     <div class="row items-center py-10">
@@ -55,3 +56,4 @@
     </div>
   </div>
 </footer>
+</div>