diff --git a/data/layout.xml b/data/layout.xml
index 6455458..5fa1142 100644
--- a/data/layout.xml
+++ b/data/layout.xml
@@ -353,11 +353,15 @@
         <button id="btn-open" width="50" height="100%" margin="0 5 0 0" text="Open"/>
         <button id="btn-save" width="50" height="100%" margin="0 5 0 0" text="Save"/>
         <button id="btn-export" width="50" height="100%" margin="0 5 0 0" text="Export"/>
-        <button id="btn-undo" width="50" height="100%" margin="0 5 0 0" text="Undo"/>
-        <button id="btn-close" width="50" height="100%" margin="0 5 0 0" text="Clear"/>
-        <button-custom id="btn-bucket" width="50" height="100%" margin="0 5 0 0" thickness="1" border-color="0 0 0 1" pad="2">
+        <button id="btn-clear" width="50" height="100%" margin="0 5 0 15" text="Clear"/>
+        <button-custom id="btn-bucket" width="50" height="100%" margin="0 20 0 0" thickness="1" border-color="0 0 0 1" pad="2">
           <image path="data/ui/bucket.png" width="100%" height="100%" align="center" justify="flex-end"/>
         </button-custom>
+        <button id="btn-undo" width="50" height="100%" margin="0 5 0 0" text="Undo"/>
+        <button id="btn-pen" width="50" height="100%" margin="0 0 0 0" text="Pen"/>
+        <button id="btn-line" width="50" height="100%" margin="0 0 0 0" text="Line"/>
+        <button id="btn-erase" width="60" height="100%" margin="0 0 0 0" text="Erase"/>
+        <button id="btn-cam" width="70" height="100%" margin="0 0 0 0" text="Camera"/>
         <!-- 
         <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/app.cpp b/engine/app.cpp
index dfefcff..aa29bdf 100644
--- a/engine/app.cpp
+++ b/engine/app.cpp
@@ -460,6 +460,11 @@ void App::initLayout()
             canvas->m_canvas->m_layers[canvas->m_canvas->m_order[idx]].m_alpha_locked = visible;
         };
 
+        if (auto* button = layout[main_id]->find<NodeButton>("btn-pen"))
+        {
+            button->on_click = [this](Node*) {
+            };
+        }
         if (auto* button = layout[main_id]->find<NodeButtonCustom>("btn-bucket"))
         {
             button->on_click = [this](Node*) {
@@ -541,7 +546,7 @@ void App::initLayout()
                 ActionManager::undo();
             };
         }
-        if (auto* button = layout[main_id]->find<NodeButton>("btn-close"))
+        if (auto* button = layout[main_id]->find<NodeButton>("btn-clear"))
         {
             button->on_click = [this](Node*) { 
                 //exit(0);