diff --git a/server/src/wled_controller/static/css/graph-editor.css b/server/src/wled_controller/static/css/graph-editor.css
index 2193b7f..e914e42 100644
--- a/server/src/wled_controller/static/css/graph-editor.css
+++ b/server/src/wled_controller/static/css/graph-editor.css
@@ -305,6 +305,11 @@
     opacity: 0.5;
 }
 
+.graph-node.running .graph-node-icon {
+    stroke: var(--primary-color);
+    opacity: 0.85;
+}
+
 /* ── Running indicator (animated gradient border) ── */
 
 .graph-node.running .graph-node-body {
diff --git a/server/src/wled_controller/static/js/features/device-discovery.js b/server/src/wled_controller/static/js/features/device-discovery.js
index 83acece..4f610c0 100644
--- a/server/src/wled_controller/static/js/features/device-discovery.js
+++ b/server/src/wled_controller/static/js/features/device-discovery.js
@@ -28,7 +28,7 @@ class AddDeviceModal extends Modal {
             baudRate: document.getElementById('device-baud-rate').value,
             ledType: document.getElementById('device-led-type')?.value || 'rgb',
             sendLatency: document.getElementById('device-send-latency')?.value || '0',
-            zones: _getCheckedZones('device-zone-list'),
+            zones: JSON.stringify(_getCheckedZones('device-zone-list')),
             zoneMode: _getZoneMode(),
         };
     }