diff --git a/prototype/UI/index.html b/prototype/UI/index.html
index 19b60ffc6..a9e0a5a22 100644
--- a/prototype/UI/index.html
+++ b/prototype/UI/index.html
@@ -14,7 +14,7 @@
margin-right: 50%;
}
.replace {
- background-color: #ffffeb;
+ background-color: #eee;
}