src/main/java/ch/psi/mxsc/Puck.java

@@ -281,7 +281,7 @@ public class Puck extends DeviceBase {
                 return Color.GRAY;
             } else */ 
             if (isHighlithted()){
-                return new Color(32,32,32);
+                return new Color(0,0,0);
             } 
             return Color.GRAY;
         }