diff --git a/meshmon.css b/meshmon.css
index b3947ea..364fd5e 100644
--- a/meshmon.css
+++ b/meshmon.css
@@ -47,6 +47,9 @@ body {
 .packet-header-row {
     background: #333333;
 }
+.packet-header-row-outbound {
+    background: #006215;
+}
 .decoded td {
     text-align: left;
     font-size: 80%;
diff --git a/meshmon.js b/meshmon.js
index e38b1fb..6ec3275 100644
--- a/meshmon.js
+++ b/meshmon.js
@@ -210,10 +210,15 @@ const dummyHeader = {
 };
 
 function render(se) {
-    var row = tbody.insertRow();
-    row.className = 'packet-header-row';
+    var headerRow = tbody.insertRow();
+    if (se.packet.rxRssi == 0) {
+        headerRow.className = 'packet-header-row-outbound';
+    } else {
+        headerRow.className = 'packet-header-row';
+    }
+
     fields.forEach((field) => {
-        row.insertCell().innerHTML = se.header[field];
+        headerRow.insertCell().innerHTML = se.header[field];
     });
 
     var decodedText = '';