diff --git a/static/styles/dark_theme.css b/static/styles/dark_theme.css
index 0376b3b5ae..d485e96317 100644
--- a/static/styles/dark_theme.css
+++ b/static/styles/dark_theme.css
@@ -1337,7 +1337,8 @@
     .date_row span::after,
     .streams_subheader span::before,
     .streams_subheader span::after {
-        opacity: 0.2;
+        opacity: 0.5;
+        border-bottom: 1px solid hsl(0, 0%, 100%);
     }
 
     .star:not(.empty-star),
diff --git a/static/styles/zulip.css b/static/styles/zulip.css
index 3207730f1d..ea0355e1f9 100644
--- a/static/styles/zulip.css
+++ b/static/styles/zulip.css
@@ -2559,7 +2559,7 @@ select.invite-as {
 
 .sub-unsub-message .stream-status,
 .date_row span {
-    opacity: 0.5;
+    opacity: 0.6;
 }
 
 .sub-unsub-message span {
@@ -2577,8 +2577,8 @@ select.invite-as {
     vertical-align: middle;
     width: 50%;
     height: 0;
-    border-top: 1px solid hsl(0, 0%, 88%);
-    border-bottom: 1px solid hsl(0, 0%, 100%);
+    opacity: 0.2;
+    border-bottom: 1px solid hsl(0, 0%, 0%);
 }
 
 .sub-unsub-message span::before,