list.size > 0 changed to !list.isEmpty

We care about if it's empty or not, not about it's size

Mage.Client/src/main/java/mage/client/cards/Cards.java

@@ -225,7 +225,7 @@ public class Cards extends javax.swing.JPanel {
         }
 
         if (!isVisibleIfEmpty) {
-            cardArea.setVisible(cards.size() > 0);
+            cardArea.setVisible(!cards.isEmpty());
         }
 
         sizeCards(getCardDimension());