diff --git a/app/src/main/res/drawable/baground_auto_dac.xml b/app/src/main/res/drawable/baground_auto_dac.xml
new file mode 100644
index 0000000..34d6bfb
--- /dev/null
+++ b/app/src/main/res/drawable/baground_auto_dac.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item>
+        <shape android:shape="rectangle">
+            <solid android:color="@color/card_blue_app" />
+            <corners android:radius="20dp" />
+        </shape>
+    </item>
+</selector>
\ No newline at end of file
diff --git a/app/src/main/res/drawable/border.xml b/app/src/main/res/drawable/border.xml
index 176c850..44f79a9 100644
--- a/app/src/main/res/drawable/border.xml
+++ b/app/src/main/res/drawable/border.xml
@@ -3,7 +3,8 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     tools:ignore="ExtraText">
     <solid android:color="@android:color/transparent" />
+    <corners android:radius="10dp" />
     <stroke
         android:color="#000000"
-    android:width="2dp" />
+    android:width="1dp" />
 </shape>
diff --git a/app/src/main/res/drawable/pannel_button.xml b/app/src/main/res/drawable/pannel_button.xml
index 3506a1c..c2541e1 100644
--- a/app/src/main/res/drawable/pannel_button.xml
+++ b/app/src/main/res/drawable/pannel_button.xml
@@ -1,10 +1,18 @@
 <?xml version="1.0" encoding="utf-8"?>
-<selector xmlns:android="http://schemas.android.com/apk/res/android">
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- Drop Shadow -->
     <item>
+        <shape android:shape="rectangle">
+            <solid android:color="#4D000000" /> <!-- Semi-transparent black color -->
+            <corners android:radius="20dp" />
+        </shape>
+    </item>
+
+    <!-- Original Shape with Blue Color -->
+    <item android:top="5dp" android:right="5dp" android:left="5dp" android:bottom="5dp">
         <shape android:shape="rectangle">
             <solid android:color="@color/card_blue_app" />
             <corners android:radius="20dp" />
-            <stroke android:color="@color/red" android:width="1dp" />
         </shape>
     </item>
-</selector>
\ No newline at end of file
+</layer-list>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_auto_dac.xml b/app/src/main/res/layout/fragment_auto_dac.xml
index 09e6330..7691267 100644
--- a/app/src/main/res/layout/fragment_auto_dac.xml
+++ b/app/src/main/res/layout/fragment_auto_dac.xml
@@ -47,12 +47,13 @@
         style="@style/title1_1"
         android:layout_width="0dp"
         android:layout_height="380dp"
+        android:background="@drawable/baground_auto_dac"
         android:layout_marginHorizontal="24dp"
         android:layout_marginTop="16dp"
         android:gravity="center"
         android:text="Start"
         android:textColor="@color/black"
-        android:textSize="11sp"
+        android:textSize="16sp"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@id/tv_subtitle3" />
diff --git a/app/src/main/res/layout/fragment_blank.xml b/app/src/main/res/layout/fragment_blank.xml
index 9a8a4b4..2703615 100644
--- a/app/src/main/res/layout/fragment_blank.xml
+++ b/app/src/main/res/layout/fragment_blank.xml
@@ -50,9 +50,10 @@
         android:layout_marginHorizontal="24dp"
         android:layout_marginTop="16dp"
         android:gravity="center"
+        android:background="@drawable/baground_auto_dac"
         android:text="Start"
         android:textColor="@color/black"
-        android:textSize="11sp"
+        android:textSize="16sp"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@id/tv_subtitle3" />
diff --git a/app/src/main/res/layout/fragment_calibration.xml b/app/src/main/res/layout/fragment_calibration.xml
index 4f3bccd..ec059ad 100644
--- a/app/src/main/res/layout/fragment_calibration.xml
+++ b/app/src/main/res/layout/fragment_calibration.xml
@@ -37,6 +37,8 @@
         android:layout_height="wrap_content"
         android:layout_marginHorizontal="24dp"
         android:layout_marginTop="16dp"
+        android:paddingLeft="5dp"
+        android:paddingRight="5dp"
         android:orientation="horizontal"
         android:background="@drawable/border"
         app:layout_constraintEnd_toEndOf="parent"
@@ -70,8 +72,10 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_marginHorizontal="24dp"
-        android:layout_marginTop="16dp"
+        android:layout_marginTop="36dp"
         android:orientation="horizontal"
+        android:paddingLeft="5dp"
+        android:paddingRight="5dp"
         android:background="@drawable/border"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
@@ -104,8 +108,10 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_marginHorizontal="24dp"
-        android:layout_marginTop="16dp"
+        android:layout_marginTop="36dp"
         android:orientation="horizontal"
+        android:paddingLeft="5dp"
+        android:paddingRight="5dp"
         android:background="@drawable/border"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
@@ -138,8 +144,10 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_marginHorizontal="24dp"
-        android:layout_marginTop="16dp"
+        android:layout_marginTop="36dp"
         android:orientation="horizontal"
+        android:paddingLeft="5dp"
+        android:paddingRight="5dp"
         android:background="@drawable/border"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
@@ -174,7 +182,7 @@
         android:layout_height="wrap_content"
         android:layout_marginHorizontal="24dp"
 
-        android:layout_marginTop="16dp"
+        android:layout_marginTop="36dp"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@id/llLed4Fields" />
@@ -185,9 +193,10 @@
         android:layout_width="0dp"
         android:layout_height="50dp"
         android:layout_marginHorizontal="24dp"
-        android:layout_marginTop="8dp"
+        android:layout_marginTop="60dp"
         android:gravity="center"
         android:text="Start"
+        android:background="@drawable/baground_auto_dac"
         android:textColor="@color/black"
         android:textSize="16sp"
         app:layout_constraintEnd_toEndOf="parent"
@@ -199,7 +208,7 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_marginHorizontal="16dp"
-        android:layout_marginTop="10dp"
+        android:layout_marginTop="60dp"
         android:clickable="false"
         android:paddingLeft="5dp"
         android:paddingRight="5dp"
diff --git a/app/src/main/res/layout/fragment_device.xml b/app/src/main/res/layout/fragment_device.xml
index 84d4928..2151270 100644
--- a/app/src/main/res/layout/fragment_device.xml
+++ b/app/src/main/res/layout/fragment_device.xml
@@ -13,6 +13,7 @@
         android:layout_marginHorizontal="24dp"
         android:layout_marginTop="50dp"
         android:gravity="center"
+        android:background="@drawable/baground_auto_dac"
         android:text="Start"
         android:textColor="@color/black"
         android:textSize="16sp"
diff --git a/app/src/main/res/layout/fragment_diagnostics.xml b/app/src/main/res/layout/fragment_diagnostics.xml
index 49a5ab1..19779ac 100644
--- a/app/src/main/res/layout/fragment_diagnostics.xml
+++ b/app/src/main/res/layout/fragment_diagnostics.xml
@@ -51,6 +51,7 @@
         android:layout_marginTop="16dp"
         android:gravity="center"
         android:text="Start"
+        android:background="@drawable/baground_auto_dac"
         android:textColor="@color/red"
         android:textSize="22sp"
         app:layout_constraintEnd_toEndOf="parent"
diff --git a/app/src/main/res/layout/fragment_gallery.xml b/app/src/main/res/layout/fragment_gallery.xml
index f57637e..cc2565e 100644
--- a/app/src/main/res/layout/fragment_gallery.xml
+++ b/app/src/main/res/layout/fragment_gallery.xml
@@ -28,44 +28,51 @@
 
         <GridLayout
             android:layout_width="match_parent"
-            android:layout_height="600dp"
-            android:layout_margin="10sp"
+            android:layout_height="wrap_content"
             android:columnCount="2"
             android:rowCount="4"
+            android:layout_margin="5dp"
             app:layout_constraintBottom_toBottomOf="parent"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@+id/tv_subtitle4"
-            app:layout_constraintVertical_bias="0.471">
+           >
 
 
             <com.google.android.material.button.MaterialButton
                 android:id="@+id/btn_submit"
-                android:layout_width="150dp"
-                android:layout_height="130dp"
-                android:layout_margin="15sp"
+                android:layout_width="160dp"
+                android:layout_height="120dp"
+                android:textSize="14dp"
+                android:layout_margin="8sp"
+                android:layout_gravity="center"
                 android:clickable="false"
                 android:background="@drawable/pannel_button"
                 android:text="@string/check_buffer"
                 android:textColor="@color/blue_text_color" />
 
-
             <com.google.android.material.button.MaterialButton
                 android:id="@+id/btn_diagnostics"
-                android:layout_width="150dp"
-                android:layout_height="130dp"
-                android:layout_margin="15sp"
+                android:layout_width="160dp"
+                android:layout_height="120dp"
+                android:layout_margin="8sp"
+                android:textSize="14dp"
+                android:layout_gravity="center"
+                android:text="diagnostics"
                 android:clickable="false"
-                android:text="@string/diagnostics"
                 android:background="@drawable/pannel_button"
-                android:textColor="@color/blue_text_color"
-                app:cornerRadius="16dp" />
+                android:textColor="@color/blue_text_color" />
+
+
+
 
             <com.google.android.material.button.MaterialButton
                 android:id="@+id/btn_auto_dac"
-                android:layout_width="150dp"
-                android:layout_height="130dp"
-                android:layout_margin="15sp"
+                android:layout_width="160dp"
+                android:layout_height="120dp"
+                android:textSize="14dp"
+                android:layout_gravity="center"
+                android:layout_margin="8sp"
                 android:clickable="false"
                 android:text="@string/auto_dac"
                 android:background="@drawable/pannel_button"
@@ -74,9 +81,11 @@
 
             <com.google.android.material.button.MaterialButton
                 android:id="@+id/btn_calibration"
-                android:layout_width="150dp"
-                android:layout_height="130dp"
-                android:layout_margin="15sp"
+                android:layout_width="160dp"
+                android:layout_height="120dp"
+                android:textSize="14dp"
+                android:layout_gravity="center"
+                android:layout_margin="8sp"
                 android:clickable="false"
                 android:text="@string/calibration"
                 android:background="@drawable/pannel_button"
@@ -86,9 +95,11 @@
 
             <com.google.android.material.button.MaterialButton
                 android:id="@+id/btn_deviceInfo"
-                android:layout_width="150dp"
-                android:layout_height="130dp"
-                android:layout_margin="15sp"
+                android:layout_width="160dp"
+                android:layout_gravity="center"
+                android:textSize="14dp"
+                android:layout_height="120dp"
+                android:layout_margin="8sp"
                 android:clickable="false"
                 android:text="@string/deviceinfo"
                 android:background="@drawable/pannel_button"
@@ -97,9 +108,11 @@
 
             <Button
                 android:id="@+id/btn_deviceProvision"
-                android:layout_width="150dp"
-                android:layout_height="130dp"
-                android:layout_margin="15sp"
+                android:layout_width="160dp"
+                android:layout_height="120dp"
+                android:layout_margin="8sp"
+                android:textSize="14dp"
+                android:layout_gravity="center"
                 android:text="@string/deviceProvision"
                 android:background="@drawable/pannel_button"
                 android:textColor="@color/blue_text_color"
@@ -108,10 +121,12 @@
 
             <Button
                 android:id="@+id/btn_firefox"
-                android:layout_width="150dp"
-                android:layout_height="130dp"
-                android:layout_margin="15sp"
+                android:layout_width="160dp"
+                android:layout_height="120dp"
+                android:textSize="14dp"
+                android:layout_margin="8sp"
                 android:clickable="false"
+                android:layout_gravity="center"
                 android:text="@string/Firefox"
                 android:background="@drawable/pannel_button"
                 android:textColor="@color/blue_text_color"
@@ -119,9 +134,11 @@
 
             <Button
                 android:id="@+id/btn_files"
-                android:layout_width="150dp"
-                android:layout_height="130dp"
-                android:layout_margin="15sp"
+                android:layout_width="160dp"
+                android:layout_height="120dp"
+                android:layout_margin="8sp"
+                android:textSize="14dp"
+                android:layout_gravity="center"
                 android:clickable="false"
                 android:text="@string/Files"
                 android:background="@drawable/pannel_button"
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index d0e04f1..30f4c91 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -16,7 +16,7 @@
     <color name="red">#FF0000</color>
     <color name="red_light">#88FF0000</color>
     <color name="blue_app">#4daaff</color>
-    <color name="card_blue_app">#6600A3E0</color>
+    <color name="card_blue_app">#43BFE8F7</color>
     <color name="blue_app_dark">#005db3</color>
     <color name="blue_app_light">#e5f3ff</color>
     <color name="new_blue">#A2C3FA</color>