diff --git a/src/themes.css b/src/themes.css
index 3b9f37ed..fbc18930 100644
--- a/src/themes.css
+++ b/src/themes.css
@@ -810,7 +810,7 @@
   --catalog-post-menu-desktop-btn-hover-color: #5f89ac;
   --catalog-post-menu-desktop-btn-opacity: 0.5;
   --catalog-post-menu-desktop-btn-hover-opacity: 1;
-  --catalog-post-preview-background-color: #181f24;
+  --catalog-post-preview-background-color: #000;
   --catalog-post-preview-color: #dedede;
   --catalog-post-preview-subject-color: #b294bb;
   --catalog-post-preview-author-color: #00a550;