diff --git a/app/src/main/java/org/solovyev/android/calculator/CalculatorActivity.java b/app/src/main/java/org/solovyev/android/calculator/CalculatorActivity.java
index ef08817f..6ef0afd5 100644
--- a/app/src/main/java/org/solovyev/android/calculator/CalculatorActivity.java
+++ b/app/src/main/java/org/solovyev/android/calculator/CalculatorActivity.java
@@ -23,20 +23,17 @@
 package org.solovyev.android.calculator;
 
 import android.content.SharedPreferences;
-import android.content.res.Resources;
-import android.os.Build;
 import android.os.Bundle;
 import android.support.v4.app.FragmentManager;
 import android.support.v4.app.FragmentTransaction;
-import android.support.v7.widget.CardView;
 import android.support.v7.widget.Toolbar;
 import android.view.KeyEvent;
 import android.view.MenuItem;
 import android.view.View;
-import android.view.ViewGroup;
 import android.view.Window;
 import android.widget.FrameLayout;
-
+import butterknife.Bind;
+import butterknife.ButterKnife;
 import org.solovyev.android.calculator.converter.ConverterFragment;
 import org.solovyev.android.calculator.history.History;
 import org.solovyev.android.calculator.keyboard.PartialKeyboardUi;
@@ -45,9 +42,6 @@ import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 import javax.inject.Inject;
 
-import butterknife.Bind;
-import butterknife.ButterKnife;
-
 import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;
 import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED;
 import static android.view.WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON;
@@ -76,9 +70,6 @@ public class CalculatorActivity extends BaseActivity implements SharedPreference
     Toolbar toolbar;
     @Bind(R.id.editor)
     FrameLayout editor;
-    @Nullable
-    @Bind(R.id.card)
-    CardView card;
     private boolean useBackAsPrevious;
 
     public CalculatorActivity() {
@@ -112,8 +103,7 @@ public class CalculatorActivity extends BaseActivity implements SharedPreference
             startupHelper.onMainActivityOpened(this);
         }
 
-        toggleOrientationChange();
-        prepareCardAndToolbar();
+        updateOrientation();
 
         preferences.registerOnSharedPreferenceChangeListener(this);
         preferredPreferences.check(this, false);
@@ -172,11 +162,11 @@ public class CalculatorActivity extends BaseActivity implements SharedPreference
         }
 
         if (Preferences.Gui.rotateScreen.getKey().equals(key)) {
-            toggleOrientationChange();
+            updateOrientation();
         }
     }
 
-    private void toggleOrientationChange() {
+    private void updateOrientation() {
         if (Preferences.Gui.rotateScreen.getPreference(preferences)) {
             setRequestedOrientation(SCREEN_ORIENTATION_UNSPECIFIED);
         } else {
@@ -205,26 +195,4 @@ public class CalculatorActivity extends BaseActivity implements SharedPreference
         }
         return false;
     }
-
-    private void prepareCardAndToolbar() {
-        if (card == null) {
-            return;
-        }
-        final Resources resources = getResources();
-        final int cardTopMargin = resources.getDimensionPixelSize(R.dimen.cpp_card_margin);
-        final int preLollipopCardTopPadding = Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP ? card.getPaddingTop() : 0;
-
-        {
-            final ViewGroup.LayoutParams lp = toolbar.getLayoutParams();
-            lp.height += cardTopMargin + preLollipopCardTopPadding;
-            toolbar.setLayoutParams(lp);
-            // center icons in toolbar
-            toolbar.setPadding(toolbar.getPaddingLeft(), toolbar.getPaddingTop() + cardTopMargin / 2 + preLollipopCardTopPadding, toolbar.getPaddingRight(), toolbar.getPaddingBottom() + cardTopMargin / 2);
-        }
-        final ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) card.getLayoutParams();
-        final int actionWidth = resources.getDimensionPixelSize(R.dimen.abc_action_button_min_width_overflow_material) + 2 * resources.getDimensionPixelSize(R.dimen.abc_action_bar_overflow_padding_start_material);
-        lp.leftMargin = actionWidth + 2 * toolbar.getPaddingLeft();
-        lp.rightMargin = actionWidth + 2 * toolbar.getPaddingRight();
-        card.setLayoutParams(lp);
-    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/org/solovyev/android/calculator/wizard/ChooseModeWizardStep.java b/app/src/main/java/org/solovyev/android/calculator/wizard/ChooseModeWizardStep.java
index 1b329c76..f517ea9b 100644
--- a/app/src/main/java/org/solovyev/android/calculator/wizard/ChooseModeWizardStep.java
+++ b/app/src/main/java/org/solovyev/android/calculator/wizard/ChooseModeWizardStep.java
@@ -22,17 +22,23 @@
 
 package org.solovyev.android.calculator.wizard;
 
+import android.graphics.Typeface;
 import android.os.Bundle;
 import android.view.View;
 import android.widget.AdapterView;
 import android.widget.Spinner;
 import android.widget.TextView;
+import org.solovyev.android.calculator.BaseActivity;
 import org.solovyev.android.calculator.Preferences;
 import org.solovyev.android.calculator.R;
+import org.solovyev.android.calculator.keyboard.BaseKeyboardUi;
+import org.solovyev.android.views.Adjuster;
 import org.solovyev.android.views.dragbutton.DirectionDragButton;
 
 import javax.annotation.Nonnull;
+import javax.inject.Inject;
 
+import static org.solovyev.android.calculator.App.cast;
 import static org.solovyev.android.calculator.wizard.CalculatorMode.engineer;
 import static org.solovyev.android.calculator.wizard.CalculatorMode.simple;
 import static org.solovyev.android.views.dragbutton.DragDirection.*;
@@ -42,11 +48,20 @@ public class ChooseModeWizardStep extends WizardFragment implements AdapterView.
     private DirectionDragButton button;
     private TextView description;
 
+    @Inject
+    Typeface typeface;
+
     @Override
     protected int getViewResId() {
         return R.layout.cpp_wizard_step_choose_mode;
     }
 
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        cast(this).getComponent().inject(this);
+    }
+
     @Override
     public void onViewCreated(View root, Bundle savedInstanceState) {
         super.onViewCreated(root, savedInstanceState);
@@ -58,6 +73,8 @@ public class ChooseModeWizardStep extends WizardFragment implements AdapterView.
         spinner.setOnItemSelectedListener(this);
 
         button = (DirectionDragButton) root.findViewById(R.id.wizard_mode_button);
+        BaseActivity.setFont(button, typeface);
+        Adjuster.adjustText(button, BaseKeyboardUi.getTextScale(getActivity()));
         description = (TextView) root.findViewById(R.id.wizard_mode_description);
         updateDescription(mode);
     }
diff --git a/app/src/main/java/org/solovyev/android/calculator/wizard/WizardFragment.java b/app/src/main/java/org/solovyev/android/calculator/wizard/WizardFragment.java
index bb9c32b4..b987b19c 100644
--- a/app/src/main/java/org/solovyev/android/calculator/wizard/WizardFragment.java
+++ b/app/src/main/java/org/solovyev/android/calculator/wizard/WizardFragment.java
@@ -25,7 +25,6 @@ import javax.annotation.Nullable;
 import javax.inject.Inject;
 
 import static org.solovyev.android.calculator.App.cast;
-import static org.solovyev.android.calculator.App.toPixels;
 
 public abstract class WizardFragment extends Fragment implements View.OnClickListener {
 
@@ -75,7 +74,7 @@ public abstract class WizardFragment extends Fragment implements View.OnClickLis
 
         final ViewGroup content = (ViewGroup) view.findViewById(R.id.wizard_content);
         inflater.inflate(getViewResId(), content, true);
-        Adjuster.maxWidth(content, toPixels(view, 300));
+        Adjuster.maxWidth(content, getResources().getDimensionPixelSize(R.dimen.cpp_wizard_max_width));
 
         nextButton = (TextView) view.findViewById(R.id.wizard_next);
         if (nextButton != null) {
diff --git a/app/src/main/java/org/solovyev/android/views/dragbutton/DirectionTextView.java b/app/src/main/java/org/solovyev/android/views/dragbutton/DirectionTextView.java
index 1af276b0..d401d2d5 100644
--- a/app/src/main/java/org/solovyev/android/views/dragbutton/DirectionTextView.java
+++ b/app/src/main/java/org/solovyev/android/views/dragbutton/DirectionTextView.java
@@ -2,10 +2,7 @@ package org.solovyev.android.views.dragbutton;
 
 import android.content.Context;
 import android.content.res.TypedArray;
-import android.graphics.Canvas;
-import android.graphics.PointF;
-import android.graphics.Rect;
-import android.graphics.Typeface;
+import android.graphics.*;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.text.TextPaint;
@@ -112,14 +109,15 @@ public class DirectionTextView {
                 if (array.hasValue(direction.textAttr)) {
                     value = Strings.nullToEmpty(array.getString(direction.textAttr));
                 }
+                padding = array.getDimensionPixelSize(direction.paddingAttr, defPadding);
                 scale = array.getFloat(direction.scaleAttr, defScale);
             } else {
                 value = "";
                 scale = defScale;
+                padding = defPadding;
             }
             alpha = defAlpha;
             color = defColor;
-            padding = defPadding;
             initPaint(base);
         }
 
@@ -214,12 +212,11 @@ public class DirectionTextView {
             final int paddingRight = padding;
             final int paddingTop = padding;
             final int paddingBottom = padding;
-            final int verticalPaddings = 0;
 
             switch (direction) {
                 case up:
                 case down:
-                    offset.x = -paddingLeft - bounds.width();
+                    offset.x = -paddingLeft - bounds.width() - bounds.left;
                     if (direction == DragDirection.up) {
                         offset.y = paddingTop + fixedTextHeight;
                     } else {
@@ -233,7 +230,7 @@ public class DirectionTextView {
                     } else {
                         offset.x = -paddingRight - bounds.width();
                     }
-                    offset.y = paddingTop - verticalPaddings / 2 + fixedTextHeight / 2;
+                    offset.y = (paddingTop - paddingBottom) / 2 + fixedTextHeight / 2;
                     break;
             }
         }
diff --git a/app/src/main/java/org/solovyev/android/views/dragbutton/DragDirection.java b/app/src/main/java/org/solovyev/android/views/dragbutton/DragDirection.java
index 09889cdc..599b98fc 100644
--- a/app/src/main/java/org/solovyev/android/views/dragbutton/DragDirection.java
+++ b/app/src/main/java/org/solovyev/android/views/dragbutton/DragDirection.java
@@ -6,10 +6,10 @@ import org.solovyev.android.calculator.R;
 
 public enum DragDirection {
 
-    up(180f - 45f, 180f - 0f, R.styleable.DirectionText_directionTextUp, R.styleable.DirectionText_directionTextScaleUp),
-    down(0f, 45f, R.styleable.DirectionText_directionTextDown, R.styleable.DirectionText_directionTextScaleDown),
-    left(90f - 45f, 90f + 45f, R.styleable.DirectionText_directionTextLeft, R.styleable.DirectionText_directionTextScaleLeft),
-    right(90f - 45f, 90f + 45f, R.styleable.DirectionText_directionTextRight, R.styleable.DirectionText_directionTextScaleRight);
+    up(180f - 45f, 180f - 0f, R.styleable.DirectionText_directionTextUp, R.styleable.DirectionText_directionTextScaleUp, R.styleable.DirectionText_directionTextPaddingUp),
+    down(0f, 45f, R.styleable.DirectionText_directionTextDown, R.styleable.DirectionText_directionTextScaleDown, R.styleable.DirectionText_directionTextPaddingDown),
+    left(90f - 45f, 90f + 45f, R.styleable.DirectionText_directionTextLeft, R.styleable.DirectionText_directionTextScaleLeft, R.styleable.DirectionText_directionTextPaddingLeft),
+    right(90f - 45f, 90f + 45f, R.styleable.DirectionText_directionTextRight, R.styleable.DirectionText_directionTextScaleRight, R.styleable.DirectionText_directionTextPaddingRight);
 
     final float angleFrom;
     final float angleTo;
@@ -17,11 +17,14 @@ public enum DragDirection {
     final int textAttr;
     @StyleableRes
     final int scaleAttr;
+    @StyleableRes
+    final int paddingAttr;
 
-    DragDirection(float angleFrom, float angleTo, int textAttr, int scaleAttr) {
+    DragDirection(float angleFrom, float angleTo, @StyleableRes int textAttr, @StyleableRes int scaleAttr, @StyleableRes int paddingAttr) {
         this.angleFrom = angleFrom;
         this.angleTo = angleTo;
         this.textAttr = textAttr;
         this.scaleAttr = scaleAttr;
+        this.paddingAttr = paddingAttr;
     }
 }
diff --git a/app/src/main/res/layout-sw600dp/activity_main.xml b/app/src/main/res/layout-sw600dp/activity_main.xml
deleted file mode 100644
index fb8f3557..00000000
--- a/app/src/main/res/layout-sw600dp/activity_main.xml
+++ /dev/null
@@ -1,79 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<!--
-  ~ Copyright 2013 serso aka se.solovyev
-  ~
-  ~ Licensed under the Apache License, Version 2.0 (the "License");
-  ~ you may not use this file except in compliance with the License.
-  ~ You may obtain a copy of the License at
-  ~
-  ~    http://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License.
-  ~
-  ~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-  ~ Contact details
-  ~
-  ~ Email: se.solovyev@gmail.com
-  ~ Site:  http://se.solovyev.org
-  -->
-<LinearLayout
-    a:id="@+id/main"
-    style="@style/CppMain"
-    xmlns:a="http://schemas.android.com/apk/res/android"
-    a:orientation="vertical">
-
-    <FrameLayout
-        a:layout_width="match_parent"
-        a:layout_height="0dp"
-        a:layout_weight="3">
-
-        <android.support.v7.widget.Toolbar
-            a:id="@+id/toolbar"
-            a:layout_width="match_parent"
-            a:layout_height="?actionBarSize" />
-
-        <android.support.v7.widget.CardView
-            a:id="@+id/card"
-            style="?attr/cpp_card_style"
-            a:layout_width="match_parent"
-            a:layout_height="match_parent"
-            a:layout_margin="@dimen/cpp_card_margin">
-
-            <LinearLayout
-                a:layout_width="match_parent"
-                a:layout_height="match_parent"
-                a:orientation="vertical">
-
-                <FrameLayout
-                    a:id="@+id/editor"
-                    a:layout_width="match_parent"
-                    a:layout_height="0dp"
-                    a:layout_weight="2" />
-
-                <View
-                    a:layout_width="match_parent"
-                    a:layout_height="1px"
-                    a:background="?android:attr/listDivider" />
-
-                <FrameLayout
-                    a:id="@+id/display"
-                    a:layout_width="match_parent"
-                    a:layout_height="0dp"
-                    a:layout_weight="1" />
-
-            </LinearLayout>
-        </android.support.v7.widget.CardView>
-    </FrameLayout>
-
-    <FrameLayout
-        a:id="@+id/keyboard"
-        a:layout_width="match_parent"
-        a:layout_height="0dp"
-        a:layout_weight="4" />
-
-</LinearLayout>
diff --git a/app/src/main/res/layout-sw600dp/cpp_app_keyboard.xml b/app/src/main/res/layout-sw600dp/cpp_app_keyboard.xml
deleted file mode 100644
index a271e8b7..00000000
--- a/app/src/main/res/layout-sw600dp/cpp_app_keyboard.xml
+++ /dev/null
@@ -1,122 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<!--
-  ~ Copyright 2013 serso aka se.solovyev
-  ~
-  ~ Licensed under the Apache License, Version 2.0 (the "License");
-  ~ you may not use this file except in compliance with the License.
-  ~ You may obtain a copy of the License at
-  ~
-  ~    http://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License.
-  ~
-  ~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-  ~ Contact details
-  ~
-  ~ Email: se.solovyev@gmail.com
-  ~ Site:  http://se.solovyev.org
-  -->
-
-<LinearLayout xmlns:a="http://schemas.android.com/apk/res/android"
-    a:layout_width="match_parent"
-    a:layout_height="match_parent"
-    a:orientation="vertical">
-
-    <LinearLayout
-        a:layout_width="match_parent"
-        a:layout_height="0dp"
-        a:layout_weight="1"
-        a:baselineAligned="false"
-        a:orientation="horizontal">
-
-        <include layout="@layout/cpp_app_button_left" />
-
-        <include layout="@layout/cpp_app_button_erase" />
-
-        <include layout="@layout/cpp_app_button_copy" />
-
-        <include layout="@layout/cpp_app_button_paste" />
-
-        <include layout="@layout/cpp_app_button_donate" />
-
-        <include layout="@layout/cpp_app_button_clear" />
-
-        <include layout="@layout/cpp_app_button_right" />
-
-    </LinearLayout>
-
-    <LinearLayout
-        a:layout_width="match_parent"
-        a:layout_height="0dp"
-        a:layout_weight="1"
-        a:baselineAligned="false"
-        a:orientation="horizontal">
-
-        <include layout="@layout/cpp_app_button_vars" />
-
-        <include layout="@layout/cpp_app_button_7" />
-
-        <include layout="@layout/cpp_app_button_8" />
-
-        <include layout="@layout/cpp_app_button_9" />
-
-        <include layout="@layout/cpp_app_button_multiplication" />
-
-        <include layout="@layout/cpp_app_button_division" />
-
-        <include layout="@layout/cpp_app_button_equals" />
-
-    </LinearLayout>
-
-    <LinearLayout
-        a:layout_width="match_parent"
-        a:layout_height="0dp"
-        a:layout_weight="1"
-        a:baselineAligned="false"
-        a:orientation="horizontal">
-
-        <include layout="@layout/cpp_app_button_functions" />
-
-        <include layout="@layout/cpp_app_button_4" />
-
-        <include layout="@layout/cpp_app_button_5" />
-
-        <include layout="@layout/cpp_app_button_6" />
-
-        <include layout="@layout/cpp_app_button_plus" />
-
-        <include layout="@layout/cpp_app_button_minus" />
-
-        <include layout="@layout/cpp_app_button_round_brackets" />
-
-    </LinearLayout>
-
-    <LinearLayout
-        a:layout_width="match_parent"
-        a:layout_height="0dp"
-        a:layout_weight="1"
-        a:baselineAligned="false"
-        a:orientation="horizontal">
-
-        <include layout="@layout/cpp_app_button_operators" />
-
-        <include layout="@layout/cpp_app_button_1" />
-
-        <include layout="@layout/cpp_app_button_2" />
-
-        <include layout="@layout/cpp_app_button_3" />
-
-        <include layout="@layout/cpp_app_button_0" />
-
-        <include layout="@layout/cpp_app_button_dot" />
-
-        <include layout="@layout/cpp_app_button_history" />
-
-    </LinearLayout>
-
-</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/cpp_app_button_dot.xml b/app/src/main/res/layout/cpp_app_button_dot.xml
index 4b589a3a..426ed501 100644
--- a/app/src/main/res/layout/cpp_app_button_dot.xml
+++ b/app/src/main/res/layout/cpp_app_button_dot.xml
@@ -28,6 +28,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     a:id="@id/cpp_button_period"
     style="?attr/cpp_button_style_digit"
+    c:directionTextScale="0.6"
     a:text="."
     c:directionTextUp=","
     tools:ignore="HardcodedText" />
\ No newline at end of file
diff --git a/app/src/main/res/layout/cpp_app_button_equals_no_bg.xml b/app/src/main/res/layout/cpp_app_button_equals_no_bg.xml
index da06dcb8..bbf5774f 100644
--- a/app/src/main/res/layout/cpp_app_button_equals_no_bg.xml
+++ b/app/src/main/res/layout/cpp_app_button_equals_no_bg.xml
@@ -30,6 +30,7 @@
     a:background="@drawable/button_no_bg"
     a:text="="
     a:textColor="?attr/cpp_text_color"
+    c:directionTextColor="?attr/cpp_text_color"
     c:directionTextDown="@string/cpp_plot_button_text"
     c:directionTextUp="≡"
     tools:ignore="HardcodedText" />
\ No newline at end of file
diff --git a/app/src/main/res/layout/cpp_app_button_history.xml b/app/src/main/res/layout/cpp_app_button_history.xml
index f247133f..1b29e5fc 100644
--- a/app/src/main/res/layout/cpp_app_button_history.xml
+++ b/app/src/main/res/layout/cpp_app_button_history.xml
@@ -27,5 +27,6 @@
     a:id="@id/cpp_button_history"
     style="?attr/cpp_button_style_control"
     a:src="@drawable/ic_history_white_48dp"
+    app:directionTextScale="0.5"
     app:directionTextDown="@string/cpp_kb_redo"
     app:directionTextUp="@string/cpp_kb_undo" />
\ No newline at end of file
diff --git a/app/src/main/res/layout/cpp_app_display.xml b/app/src/main/res/layout/cpp_app_display.xml
index 53a8b09d..c4608f24 100644
--- a/app/src/main/res/layout/cpp_app_display.xml
+++ b/app/src/main/res/layout/cpp_app_display.xml
@@ -25,5 +25,6 @@
 <org.solovyev.android.calculator.DisplayView
     android:id="@+id/calculator_display"
     style="@style/CppText.Display"
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:padding="@dimen/cpp_display_padding" />
\ No newline at end of file
+    android:paddingLeft="@dimen/cpp_display_padding_side"
+    android:paddingRight="@dimen/cpp_display_padding_side"
+    xmlns:android="http://schemas.android.com/apk/res/android"/>
\ No newline at end of file
diff --git a/app/src/main/res/layout/cpp_wizard_step_choose_mode.xml b/app/src/main/res/layout/cpp_wizard_step_choose_mode.xml
index f4a1bb96..e3b7fcec 100644
--- a/app/src/main/res/layout/cpp_wizard_step_choose_mode.xml
+++ b/app/src/main/res/layout/cpp_wizard_step_choose_mode.xml
@@ -59,8 +59,8 @@
             <org.solovyev.android.views.dragbutton.DirectionDragButton
                 a:id="@+id/wizard_mode_button"
                 style="?attr/cpp_button_style_operation"
-                a:layout_width="100dp"
-                a:layout_height="100dp"
+                a:layout_width="@dimen/cpp_wizard_preview_button_size"
+                a:layout_height="@dimen/cpp_wizard_preview_button_size"
                 a:text="7" />
         </FrameLayout>
 
diff --git a/app/src/main/res/layout/cpp_wizard_step_choose_theme_preview.xml b/app/src/main/res/layout/cpp_wizard_step_choose_theme_preview.xml
index fd63e74c..1dcdc36b 100644
--- a/app/src/main/res/layout/cpp_wizard_step_choose_theme_preview.xml
+++ b/app/src/main/res/layout/cpp_wizard_step_choose_theme_preview.xml
@@ -27,14 +27,14 @@
     a:layout_width="wrap_content"
     a:layout_height="wrap_content"
     a:background="?attr/cpp_editor_bg"
-    a:minWidth="200dp"
+    a:minWidth="@dimen/cpp_wizard_preview_width"
     a:orientation="vertical"
     a:padding="3dp"
     tools:ignore="Overdraw">
 
     <LinearLayout
         a:layout_width="match_parent"
-        a:layout_height="60dp"
+        a:layout_height="@dimen/cpp_wizard_preview_row_height"
         a:orientation="horizontal">
 
         <include layout="@layout/cpp_app_button_equals_no_bg" />
@@ -51,27 +51,27 @@
 
     <LinearLayout
         a:layout_width="match_parent"
-        a:layout_height="60dp"
+        a:layout_height="@dimen/cpp_wizard_preview_row_height"
         a:orientation="horizontal">
 
-        <include layout="@layout/cpp_app_button_0" />
-
-        <include layout="@layout/cpp_app_button_copy" />
+        <include layout="@layout/cpp_app_button_1" />
 
         <include layout="@layout/cpp_app_button_plus" />
 
+        <include layout="@layout/cpp_app_button_clear" />
+
     </LinearLayout>
 
     <LinearLayout
         a:layout_width="match_parent"
-        a:layout_height="60dp"
+        a:layout_height="@dimen/cpp_wizard_preview_row_height"
         a:orientation="horizontal">
 
-        <include layout="@layout/cpp_app_button_1" />
-
-        <include layout="@layout/cpp_app_button_paste" />
+        <include layout="@layout/cpp_app_button_0" />
 
         <include layout="@layout/cpp_app_button_minus" />
 
+        <include layout="@layout/cpp_app_button_memory" />
+
     </LinearLayout>
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/cpp_wizard_step_drag_button.xml b/app/src/main/res/layout/cpp_wizard_step_drag_button.xml
index 374dfc9b..f0a867b7 100644
--- a/app/src/main/res/layout/cpp_wizard_step_drag_button.xml
+++ b/app/src/main/res/layout/cpp_wizard_step_drag_button.xml
@@ -45,13 +45,11 @@
     <org.solovyev.android.views.dragbutton.DirectionDragButton
         a:id="@+id/wizard_dragbutton"
         style="?attr/cpp_button_style_operation"
-        a:layout_width="wrap_content"
-        a:layout_height="wrap_content"
+        a:layout_width="@dimen/cpp_wizard_preview_button_size"
+        a:layout_height="@dimen/cpp_wizard_preview_button_size"
+        a:layout_weight="0"
         a:layout_gravity="center"
         a:layout_margin="0dp"
-        a:layout_weight="0"
-        a:minHeight="100dp"
-        a:minWidth="100dp"
         a:text="9"
         c:directionTextDown="^2"
         c:directionTextUp="%" />
diff --git a/app/src/main/res/values-small/dimens.xml b/app/src/main/res/values-small/dimens.xml
index bf31e1b5..e1dd1368 100644
--- a/app/src/main/res/values-small/dimens.xml
+++ b/app/src/main/res/values-small/dimens.xml
@@ -24,5 +24,6 @@
     <dimen name="cpp_min_editor_text_size">18sp</dimen>
     <dimen name="cpp_display_text_size">20sp</dimen>
     <dimen name="cpp_clickable_area_size">40dp</dimen>
-    <dimen name="cpp_keyboard_button_direction_text_padding">1dp</dimen>
+    <dimen name="cpp_keyboard_button_direction_text_padding_updown">1dp</dimen>
+    <dimen name="cpp_keyboard_button_direction_text_padding_left">1dp</dimen>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values-sw600dp/dimens.xml b/app/src/main/res/values-sw600dp/dimens.xml
new file mode 100644
index 00000000..200cda90
--- /dev/null
+++ b/app/src/main/res/values-sw600dp/dimens.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <dimen name="cpp_keyboard_button_direction_text_padding_updown">16dp</dimen>
+    <dimen name="cpp_keyboard_button_direction_text_padding_left">16dp</dimen>
+    <dimen name="cpp_display_padding_side">16dp</dimen>
+    <dimen name="cpp_wizard_preview_width">400dp</dimen>
+    <dimen name="cpp_wizard_preview_row_height">133dp</dimen>
+    <dimen name="cpp_wizard_max_width">400dp</dimen>
+    <dimen name="cpp_wizard_preview_button_size">150dp</dimen>
+
+</resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/dimens.xml b/app/src/main/res/values/dimens.xml
index 1118400f..dab546e8 100644
--- a/app/src/main/res/values/dimens.xml
+++ b/app/src/main/res/values/dimens.xml
@@ -13,7 +13,8 @@
     <item name="cpp_direction_text_scale_units" format="float" type="dimen">0.3</item>
     <dimen name="cpp_button_corner">1dp</dimen>
 
-    <dimen name="cpp_keyboard_button_direction_text_padding">4dp</dimen>
+    <dimen name="cpp_keyboard_button_direction_text_padding_updown">4dp</dimen>
+    <dimen name="cpp_keyboard_button_direction_text_padding_left">2dp</dimen>
     <dimen name="cpp_keyboard_button_text_size">30dp</dimen>
     <dimen name="cpp_keyboard_simple_image_button_padding">12dp</dimen>
 
@@ -27,6 +28,7 @@
     <!--only for not multipane-->
     <dimen name="cpp_editor_padding">5dp</dimen>
     <dimen name="cpp_display_padding">3dp</dimen>
+    <dimen name="cpp_display_padding_side">10dp</dimen>
 
     <dimen name="cpp_widget_keyboard_button_text_size">20dp</dimen>
 
@@ -46,4 +48,8 @@
     <dimen name="cpp_card_margin">4dp</dimen>
 
     <dimen name="list_item_height">48dp</dimen>
+    <dimen name="cpp_wizard_preview_width">200dp</dimen>
+    <dimen name="cpp_wizard_preview_row_height">64dp</dimen>
+    <dimen name="cpp_wizard_max_width">300dp</dimen>
+    <dimen name="cpp_wizard_preview_button_size">100dp</dimen>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/drag_attrs.xml b/app/src/main/res/values/drag_attrs.xml
index 3a1db08e..9f460954 100644
--- a/app/src/main/res/values/drag_attrs.xml
+++ b/app/src/main/res/values/drag_attrs.xml
@@ -9,6 +9,10 @@
         <attr name="directionTextLeft" format="string"/>
         <attr name="directionTextScale" format="float"/>
         <attr name="directionTextPadding" format="dimension"/>
+        <attr name="directionTextPaddingUp" format="dimension"/>
+        <attr name="directionTextPaddingDown" format="dimension"/>
+        <attr name="directionTextPaddingRight" format="dimension"/>
+        <attr name="directionTextPaddingLeft" format="dimension"/>
         <attr name="directionTextScaleUp" format="float"/>
         <attr name="directionTextScaleDown" format="float"/>
         <attr name="directionTextScaleRight" format="float"/>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index cd8f8883..221c81dc 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -36,7 +36,10 @@
         <item name="android:scaleType">centerInside</item>
         <item name="directionTextColor">@color/cpp_button_text</item>
         <item name="directionTextScale">@dimen/cpp_direction_text_scale</item>
-        <item name="directionTextPadding">@dimen/cpp_keyboard_button_direction_text_padding</item>
+        <item name="directionTextPaddingUp">@dimen/cpp_keyboard_button_direction_text_padding_updown</item>
+        <item name="directionTextPaddingDown">@dimen/cpp_keyboard_button_direction_text_padding_updown</item>
+        <item name="directionTextPaddingRight">@dimen/cpp_keyboard_button_direction_text_padding_updown</item>
+        <item name="directionTextPaddingLeft">@dimen/cpp_keyboard_button_direction_text_padding_left</item>
     </style>
 
     <style name="CppText.Editor.Onscreen.Light" parent="CppText.Editor.Onscreen">
@@ -75,6 +78,10 @@
         <item name="android:textSize">@dimen/cpp_display_text_size</item>
         <item name="android:scrollHorizontally">false</item>
         <item name="android:scrollbars">none</item>
+        <item name="android:paddingRight">@dimen/cpp_display_padding</item>
+        <item name="android:paddingLeft">@dimen/cpp_display_padding</item>
+        <item name="android:paddingTop">@dimen/cpp_display_padding</item>
+        <item name="android:paddingBottom">@dimen/cpp_display_padding</item>
     </style>
 
     <style name="CppImageButton">