diff --git a/theme-arc-blue.css b/theme-arc-blue.css
index ab659ee..d7dbd86 100644
--- a/theme-arc-blue.css
+++ b/theme-arc-blue.css
@@ -1047,3 +1047,7 @@
   .repository .dif
       background-color: #332020 !important;
   }
+  .repository.view.issue .comment-list .comment .content > .merge-section {
+      border-top: 1px solid #2b51aa;
+      background-color: #1a3e21;
+ }