diff --git a/demo/res/layout/activity_main.xml b/demo/res/layout/activity_main.xml
index 026382f..cd30f35 100644
--- a/demo/res/layout/activity_main.xml
+++ b/demo/res/layout/activity_main.xml
@@ -9,18 +9,43 @@
     android:textAlignment="textStart"
     tools:context=".MainActivity">
 
-    <ScrollView
-        android:id="@+id/scrollview"
+    <LinearLayout
         android:layout_width="match_parent"
-        android:layout_height="match_parent">
+        android:layout_height="match_parent"
+        android:orientation="vertical">
 
-        <TextView
-            android:id="@+id/textview"
+        <LinearLayout
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:background="#FFEB3B"
-            android:fontFamily="monospace"
-            android:textColor="#000000" />
-    </ScrollView>
+            android:orientation="horizontal">
+
+            <Button
+                android:id="@+id/runStopButton"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="Run" />
+
+            <CheckBox
+                android:id="@+id/debugMode"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="Debug mode" />
+        </LinearLayout>
+
+        <ScrollView
+            android:id="@+id/scrollview"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent">
+
+            <TextView
+                android:id="@+id/consoleOutput"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:background="#FFEB3B"
+                android:fontFamily="monospace"
+                android:textColor="#000000" />
+        </ScrollView>
+    </LinearLayout>
 
 </androidx.constraintlayout.widget.ConstraintLayout>