Merge branch 'maven-integration' of

git.tk.informatik.tu-darmstadt.de:carlos.garcia/praktikum-holons into
maven-integration

src/holeg/ui/view/window/Outliner.java

@@ -156,9 +156,9 @@ public class Outliner extends JFrame {
 
 
 	private void signIconsForTree(JTree t) {
-		ImageIcon ClosedIcon = new ImageIcon(Import.loadImage("/images/buttons/close.png",9,9));
-		ImageIcon OpenIcon = new ImageIcon(Import.loadImage("/images/buttons/open.png",9,9));
-		ImageIcon LeafIcon = new ImageIcon(Import.loadImage("/images/buttons/leaf.png",9,9));
+		ImageIcon ClosedIcon = new ImageIcon(Import.loadImage(ImagePreference.Button.Outliner.Closed,9,9));
+		ImageIcon OpenIcon = new ImageIcon(Import.loadImage(ImagePreference.Button.Outliner.Open,9,9));
+		ImageIcon LeafIcon = new ImageIcon(Import.loadImage(ImagePreference.Button.Outliner.Leaf,9,9));
 		if (ClosedIcon != null && OpenIcon != null && LeafIcon!= null) {
 		    DefaultTreeCellRenderer renderer = 
 		        new DefaultTreeCellRenderer();