diff --git a/web.inspect/nbproject/project.xml b/web.inspect/nbproject/project.xml
--- a/web.inspect/nbproject/project.xml
+++ b/web.inspect/nbproject/project.xml
@@ -188,7 +188,7 @@
                     <build-prerequisite/>
                     <compile-dependency/>
                     <run-dependency>
-                        <specification-version>6.42</specification-version>
+                        <specification-version>6.59</specification-version>
                     </run-dependency>
                 </dependency>
                 <dependency>
diff --git a/web.inspect/src/org/netbeans/modules/web/inspect/webkit/knockout/KnockoutPanel.java b/web.inspect/src/org/netbeans/modules/web/inspect/webkit/knockout/KnockoutPanel.java
--- a/web.inspect/src/org/netbeans/modules/web/inspect/webkit/knockout/KnockoutPanel.java
+++ b/web.inspect/src/org/netbeans/modules/web/inspect/webkit/knockout/KnockoutPanel.java
@@ -114,16 +114,13 @@
                 NbBundle.getMessage(KnockoutPanel.class, "KnockoutPanel.contextView.name")); // NOI18N
         contextView.setAllowedDragActions(DnDConstants.ACTION_NONE);
         contextView.setAllowedDropActions(DnDConstants.ACTION_NONE);
+        contextView.setShowNodeIcons(false);
         contextView.addPropertyColumn(
                 KnockoutNode.ValueProperty.NAME,
                 NbBundle.getMessage(KnockoutPanel.class, "KnockoutPanel.contextView.value")); // NOI18N
 
         Outline outline = contextView.getOutline();
         outline.setRootVisible(false);
-        TableCellRenderer renderer = outline.getDefaultRenderer(Object.class);
-        if (renderer != null) {
-            outline.setDefaultRenderer(Object.class, new NoIconRenderer(renderer));
-        }
     }
 
     /**
@@ -287,72 +284,4 @@
         
     }
 
-    /**
-     * Renderer that delegates to the given renderer but doesn't paint icons.
-     */
-    final static class NoIconRenderer implements TableCellRenderer {
-        /** The original table cell renderer. */
-        private final TableCellRenderer originalRenderer;
-        /** Icon used instead of the original icons. */
-        private final Icon emptyIcon;
-
-        /**
-         * Creates a new {@code NoIconRenderer} for the specified renderer.
-         * 
-         * @param originalRenderer renderer whose icon should be removed.
-         */
-        public NoIconRenderer(TableCellRenderer originalRenderer) {
-            this.originalRenderer = originalRenderer;
-            // Icons with zero width/height are ignored
-            this.emptyIcon = new EmptyIcon(1, 1);
-        }
-
-        @Override
-        public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
-            Component component = originalRenderer.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
-            if (component instanceof JLabel) {
-                JLabel label = (JLabel)component;
-                if (label.getIcon() != null) {
-                    label.setIcon(emptyIcon);
-                }
-            }
-            return component;
-        }
-
-    }
-
-    /**
-     * Empty (transparent) icon.
-     */
-    final static class EmptyIcon implements Icon {
-        private final int width;
-        private final int height;
-
-        /**
-         * Creates a new {@code EmptyIcon}.
-         * 
-         * @param width width of the icon.
-         * @param height height of the icon.
-         */
-        EmptyIcon(int width, int height) {
-            this.width = width;
-            this.height = height;
-        }
-
-        @Override
-        public void paintIcon(Component c, Graphics g, int x, int y) {
-        }
-
-        @Override
-        public int getIconWidth() {
-            return width;
-        }
-
-        @Override
-        public int getIconHeight() {
-            return height;
-        }
-        
-    }
-
 }
diff --git a/web.inspect/src/org/netbeans/modules/web/inspect/webkit/ui/CSSStylesSelectionPanel.java b/web.inspect/src/org/netbeans/modules/web/inspect/webkit/ui/CSSStylesSelectionPanel.java
--- a/web.inspect/src/org/netbeans/modules/web/inspect/webkit/ui/CSSStylesSelectionPanel.java
+++ b/web.inspect/src/org/netbeans/modules/web/inspect/webkit/ui/CSSStylesSelectionPanel.java
@@ -119,6 +119,7 @@
 import org.openide.explorer.ExplorerUtils;
 import org.openide.explorer.view.BeanTreeView;
 import org.openide.explorer.view.ListView;
+import org.openide.explorer.view.NodeRenderer;
 import org.openide.explorer.view.TreeTableView;
 import org.openide.explorer.view.Visualizer;
 import org.openide.filesystems.FileObject;
@@ -838,19 +839,7 @@
             setRootVisible(false);
             setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
             final TreeCellRenderer renderer = tree.getCellRenderer();
-            tree.setCellRenderer(new TreeCellRenderer() {
-                @Override
-                public Component getTreeCellRendererComponent(JTree tree,
-                        Object value, boolean selected, boolean expanded,
-                        boolean leaf, int row, boolean hasFocus) {
-                    Component component = renderer.getTreeCellRendererComponent(
-                            tree, value, selected, expanded, leaf, row, hasFocus);
-                    if (component instanceof JLabel) {
-                        ((JLabel)component).setIcon(null);
-                    }
-                    return component;
-                }
-            });
+            ((NodeRenderer) renderer).setShowIcons(false);
             hideTreeLines();
             if (Boolean.getBoolean("netbeans.plaf.dark.theme") // NOI18N
                     || "Nimbus".equals(UIManager.getLookAndFeel().getID())) { // NOI18N