diff --git a/docs/assets/clover42-black.png b/docs/assets/clover42-black.png
new file mode 100644
index 00000000..ed229933
Binary files /dev/null and b/docs/assets/clover42-black.png differ
diff --git a/docs/clover.css b/docs/clover.css
index f4b17217..3ccfe498 100644
--- a/docs/clover.css
+++ b/docs/clover.css
@@ -40,6 +40,11 @@ section ul li:before {
 	margin-bottom: 0.85em;
 }
 
+.book.color-theme-2 img.big-clover {
+	/* change image for black background */
+	content:url(assets/clover42-black.png);
+}
+
 footer {
 	margin-top: 35px;
 	border-top: 1px solid #e9e9e9;