Fix pseudo class styles of graphics in pad view

PlayWall/src/main/java/de/tobias/playpad/util/NodeWalker.java

@@ -2,6 +2,7 @@ package de.tobias.playpad.util;
 
 import javafx.scene.Node;
 import javafx.scene.Parent;
+import javafx.scene.control.Labeled;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -21,6 +22,14 @@ public class NodeWalker {
 	private static void addAllDescendents(Parent parent, List<Node> nodes) {
 		for (Node node : parent.getChildrenUnmodifiable()) {
 			nodes.add(node);
+
+			if (node instanceof Labeled) {
+				final Node graphic = ((Labeled) node).getGraphic();
+				if (graphic != null) {
+					nodes.add(graphic);
+				}
+			}
+
 			if (node instanceof Parent)
 				addAllDescendents((Parent) node, nodes);
 		}