diff --git a/diylc/diylc-library/src/org/diylc/components/passive/AudioTransformer.java b/diylc/diylc-library/src/org/diylc/components/passive/AudioTransformer.java
index c0cf2e5c..597dccf8 100644
--- a/diylc/diylc-library/src/org/diylc/components/passive/AudioTransformer.java
+++ b/diylc/diylc-library/src/org/diylc/components/passive/AudioTransformer.java
@@ -397,12 +397,14 @@ public class AudioTransformer extends AbstractTransparentComponent<String> {
     g2d.fillRect(width * 3 / 8, 1, width / 4, height - 2);
     g2d.setColor(CORE_BORDER_COLOR);
     g2d.drawRect(width * 3 / 8, 1, width / 4, height - 2);
+    
+    g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.5f));
     
     int pinSize = (int) (2f * width / 32);
     g2d.setColor(PIN_COLOR);
     for (int i = 0; i < 3; i++) {
-      g2d.fillRect(width / 5 - pinSize + 1, (height / 6) * (i + 2), pinSize, pinSize);
-      g2d.fillRect(4 * width / 5 + 1, (height / 6) * (i + 2), pinSize, pinSize);
+      g2d.fillOval(width / 5 - pinSize + 1, (height / 6) * (i + 2), pinSize, pinSize);
+      g2d.fillOval(4 * width / 5 + 1, (height / 6) * (i + 2), pinSize, pinSize);
     }
   }
 
diff --git a/diylc/diylc-swing/library/main.jar b/diylc/diylc-swing/library/main.jar
index a2da6e2e..55771ff6 100644
Binary files a/diylc/diylc-swing/library/main.jar and b/diylc/diylc-swing/library/main.jar differ