diff --git a/domino-ui/src/main/java/org/dominokit/domino/ui/cards/Card.java b/domino-ui/src/main/java/org/dominokit/domino/ui/cards/Card.java
index c344ef989..065ec7827 100644
--- a/domino-ui/src/main/java/org/dominokit/domino/ui/cards/Card.java
+++ b/domino-ui/src/main/java/org/dominokit/domino/ui/cards/Card.java
@@ -519,12 +519,12 @@ public Card appendChild(PrefixAddOn<?> prefix) {
 
   @Override
   public PostfixElement getPostfixElement() {
-    return PostfixElement.of(header.get().getMainHeader().element());
+    return header.get().getPostfixElement();
   }
 
   @Override
   public PrefixElement getPrefixElement() {
-    return PrefixElement.of(header.get().getMainHeader().element());
+    return header.get().getPrefixElement();
   }
 
   /**
diff --git a/domino-ui/src/main/java/org/dominokit/domino/ui/tree/TreeItem.java b/domino-ui/src/main/java/org/dominokit/domino/ui/tree/TreeItem.java
index 9c9277e1c..dc64fe7ad 100644
--- a/domino-ui/src/main/java/org/dominokit/domino/ui/tree/TreeItem.java
+++ b/domino-ui/src/main/java/org/dominokit/domino/ui/tree/TreeItem.java
@@ -199,8 +199,12 @@ public void setActiveNode(TreeItem<V> activeItem, boolean silent) {
         this.activeNode.deactivate();
       }
       this.activeNode = activeItem;
-      this.activeNode.activate();
-      getParent().ifPresent(itemParent -> itemParent.setActiveNode(this, true));
+      this.activeNode.doActivate();
+      if (getParent().isPresent()) {
+        getParent().get().setActiveNode(this, true);
+      } else {
+        getRootNode().setActiveNode(this, true);
+      }
       if (!silent) {
         triggerSelectionListeners(activeItem, getSelection());
         getRootNode().onActiveNodeChanged(activeItem, getSelection(), silent);
diff --git a/domino-ui/src/main/java/org/dominokit/domino/ui/tree/TreeNode.java b/domino-ui/src/main/java/org/dominokit/domino/ui/tree/TreeNode.java
index 0f06ed48d..e2ca966e4 100644
--- a/domino-ui/src/main/java/org/dominokit/domino/ui/tree/TreeNode.java
+++ b/domino-ui/src/main/java/org/dominokit/domino/ui/tree/TreeNode.java
@@ -88,21 +88,22 @@ public abstract class TreeNode<V, N extends TreeNode<V, N, S>, S>
       evt -> {
         if (ToggleTarget.ANY.equals(this.toggleTarget)) {
           evt.stopPropagation();
-          if (isParent()) {
-            toggle();
-          }
-          activateNode();
+          onActivation();
         }
       };
 
+  private void onActivation() {
+    if (isParent()) {
+      toggle();
+    }
+    activateNode();
+  }
+
   private final EventListener iconListener =
       evt -> {
         if (ToggleTarget.ICON.equals(this.toggleTarget)) {
           evt.stopPropagation();
-          if (isParent()) {
-            toggle();
-          }
-          activateNode();
+          onActivation();
         }
       };
 
@@ -433,19 +434,12 @@ public List<N> getSubNodes() {
     return subNodes;
   }
 
-  /**
-   * Expands (shows and activates) this tree item. This method expands the item and activates it.
-   */
-  public void expandAndActivate() {
-    this.show(true).activate(true);
-  }
-
   /**
    * Activates (selects) this tree item without activating its parent items. This method returns
    * void.
    */
-  public void activate() {
-    activate(false);
+  public void doActivate() {
+    doActivate(false);
   }
 
   /**
@@ -454,7 +448,7 @@ public void activate() {
    *
    * @param activateParent True to activate parent items, false to activate only this item.
    */
-  public void activate(boolean activateParent) {
+  protected void doActivate(boolean activateParent) {
     addCss(dui_active);
     if (activateParent) {
       getParent().ifPresent(parent -> parent.setActiveNode((N) this));
@@ -462,6 +456,22 @@ public void activate(boolean activateParent) {
     updateIcon(isCollapsed());
   }
 
+  public N activate() {
+    this.show(true);
+    onActivation();
+    return (N) this;
+  }
+
+  /**
+   * @return same instance
+   * @deprecated use {@link #activate()}
+   */
+  @Deprecated
+  public N select() {
+    activate();
+    return (N) this;
+  }
+
   /**
    * Returns the currently active (selected) tree item within the tree structure.
    *
@@ -638,12 +648,13 @@ public N expandNode(boolean expandParent) {
    * @return This tree item with the node shown.
    */
   public N show(boolean expandParent) {
-    if (isParent()) {
-      super.expand();
-    }
     if (expandParent) {
       getParent().ifPresent(itemParent -> itemParent.expandNode(true));
     }
+
+    if (isParent()) {
+      super.expand();
+    }
     return (N) this;
   }
 
diff --git a/domino-ui/src/main/java/org/dominokit/domino/ui/tree/TreeRoot.java b/domino-ui/src/main/java/org/dominokit/domino/ui/tree/TreeRoot.java
index 51c352d5f..964f0b11f 100644
--- a/domino-ui/src/main/java/org/dominokit/domino/ui/tree/TreeRoot.java
+++ b/domino-ui/src/main/java/org/dominokit/domino/ui/tree/TreeRoot.java
@@ -264,7 +264,7 @@ public void setActiveNode(N node, boolean silent) {
     }
 
     this.activeNode = node;
-    this.activeNode.activate();
+    this.activeNode.doActivate();
     if (!silent) {
       triggerSelectionListeners(node, getSelection());
       this.activeNode.triggerSelectionListeners(node, getSelection());