diff --git a/data/layout.xml b/data/layout.xml
index fdd9b88..ce8949f 100644
--- a/data/layout.xml
+++ b/data/layout.xml
@@ -410,7 +410,7 @@
       </node>
       <!-- menu bar -->
       <border flood-events="1" margin="0 0 0 0" pad="0 0 0 0" color=".1" width="100%" height="30" dir="row" align="center">
-        <button-custom id="menu-file" height="100%" margin="0 0 0 0" justify="center" align="center" pad="8" color=".1">
+        <!--<button-custom id="menu-file" height="100%" margin="0 0 0 0" justify="center" align="center" pad="8" color=".1">
           <text text="File" font-face="arial" font-size="11"/>
         </button-custom>
         <button-custom id="menu-edit" height="100%" margin="0 0 0 0" justify="center" align="center" pad="8" color=".1">
@@ -418,9 +418,9 @@
         </button-custom>
         <button-custom id="menu-layers" height="100%" margin="0 0 0 0" justify="center" align="center" pad="8" color=".1">
           <text text="Layers" font-face="arial" font-size="11"/>
-        </button-custom>
+        </button-custom>-->
+        <text id="txt-docname" text="Document: no-name" font-face="arial" font-size="11" margin="0 20 0 10" color=".6 .6 .6 1"/>
         <node height="100%" color="1" grow="1" align="center" justify="flex-end" dir="row">
-          <text id="txt-docname" text="Document: no-name" font-face="arial" font-size="11" margin="0 20 0 0" color=".6 .6 .6 1"/>
           <text id="txt-memory" text="History memory: 0.00 Mb" font-face="arial" font-size="11" margin="0 5 0 0" color=".6 .6 .6 1"/>
           <button-custom id="btn-clean-memory" margin="0 20 0 0">
             <icon icon="delete" width="20"/>
@@ -437,7 +437,15 @@
         <button id="btn-anim" width="50" height="100%" margin="0 5 0 0" text="Anim"/>
         <button id="btn-clear" width="50" height="100%" margin="0 5 0 15" text="Clear"/>
         -->
-        <button id="btn-undo" width="50" height="100%" margin="0 5 0 0" text="Undo"/>
+        <button-custom id="menu-file" width="50" height="100%" margin="0 0 0 0" justify="center" align="center" pad="8" color=".1">
+          <text text="File" font-face="arial" font-size="11"/>
+        </button-custom>
+        <button-custom id="menu-edit" width="50" height="100%" margin="0 0 0 0" justify="center" align="center" pad="8" color=".1">
+          <text text="Edit" font-face="arial" font-size="11"/>
+        </button-custom>
+        <button-custom id="menu-layers" width="60" height="100%" margin="0 0 0 0" justify="center" align="center" pad="8" color=".1">
+          <text text="Layers" font-face="arial" font-size="11"/>
+        </button-custom>
         <node dir="row" justify="center" grow="1">
           <button id="btn-pen" width="50" height="100%" margin="0 0 0 0" text="Pen"/>
           <button id="btn-pick" width="50" height="100%" margin="0 0 0 0" text="Pick"/>
@@ -454,6 +462,7 @@
             <image path="data/ui/bucket.png" width="100%" height="100%" align="center" justify="flex-end"/>
           </button-custom>
         </node>
+        <button id="btn-undo" width="50" height="100%" margin="0 5 0 0" text="Undo"/>
         <!--
         <button-custom id="btn-layer" width="50" height="100%" margin="0 5 0 0" thickness="1" border-color="0 0 0 1" pad="6" align="center" justify="center">
           <icon width="100%" height="100%" icon="disk"/>
diff --git a/engine/node_canvas.cpp b/engine/node_canvas.cpp
index c85f9af..e150711 100644
--- a/engine/node_canvas.cpp
+++ b/engine/node_canvas.cpp
@@ -101,14 +101,15 @@ void NodeCanvas::draw()
     glEnable(GL_DEPTH_TEST);
     glClear(GL_DEPTH_BUFFER_BIT);
 
-    for (auto layer_index : m_canvas->m_order)
+    for (size_t i = 0; i < m_canvas->m_order.size(); i++)
     {
+        auto layer_index = m_canvas->m_order[i];
         for (int plane_index = 0; plane_index < 6; plane_index++)
         {
             if (m_canvas->m_layers[layer_index].m_opacity == .0f)
                 continue;
 
-            int z = (int)m_canvas->m_order.size() - layer_index;
+            int z = (int)m_canvas->m_order.size() - i;
             auto plane_mvp_z = proj * camera * 
                 glm::scale(glm::vec3(z + 1)) * 
                 m_canvas->m_plane_transform[plane_index] *