diff --git a/wwwroot/css/chat.css b/wwwroot/css/chat.css
index 38d2548..19ce9af 100644
--- a/wwwroot/css/chat.css
+++ b/wwwroot/css/chat.css
@@ -206,6 +206,10 @@
   opacity: var(--semi-transparent);
 }
 
+.tool-box:has(.tool-diff:not([hidden])) {
+  opacity: unset !important;
+}
+
 .tool-box-header {
   display: flex;
   align-items: center;