diff --git a/res/color/bottom_nav_item_color.xml b/res/color/bottom_nav_item_color.xml
index d1c118b..17d8fce 100644
--- a/res/color/bottom_nav_item_color.xml
+++ b/res/color/bottom_nav_item_color.xml
@@ -17,7 +17,7 @@
 <selector xmlns:android="http://schemas.android.com/apk/res/android">
     <item
         android:state_checked="true"
-        android:color="@color/accent_color" />
+        android:color="?android:colorAccent" />
     <item
         android:state_checked="false"
         android:color="@color/material_grey500" />
diff --git a/res/layout/activity_customization_picker_main.xml b/res/layout/activity_customization_picker_main.xml
index 40fcabb..5910ab6 100755
--- a/res/layout/activity_customization_picker_main.xml
+++ b/res/layout/activity_customization_picker_main.xml
@@ -14,7 +14,7 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<androidx.coordinatorlayout.widget.CoordinatorLayout
+<FrameLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
@@ -24,14 +24,16 @@
     <FrameLayout
         android:id="@+id/fragment_container"
         android:layout_width="match_parent"
-        android:layout_height="match_parent" />
+        android:layout_height="match_parent"
+        android:layout_marginBottom="@dimen/bottom_navbar_height"/>
 
     <com.google.android.material.bottomnavigation.BottomNavigationView
-        style="@style/BottomNavStyle"
         android:id="@+id/main_bottom_nav"
+        style="@style/BottomNavStyle"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
+        android:layout_height="@dimen/bottom_navbar_height"
         android:layout_gravity="bottom"
         app:labelVisibilityMode="labeled"
         app:menu="@menu/bottom_navigation_menu"/>
-</androidx.coordinatorlayout.widget.CoordinatorLayout>
+
+</FrameLayout>
diff --git a/res/layout/fragment_theme_picker.xml b/res/layout/fragment_theme_picker.xml
new file mode 100644
index 0000000..d88e1f7
--- /dev/null
+++ b/res/layout/fragment_theme_picker.xml
@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2018 The Android Open Source Project
+
+     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.
+-->
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:background="@color/category_picker_background_color">
+    <include layout="@layout/section_header"/>
+
+    <!-- TODO(santie): Preview pager goes here... -->
+
+    <LinearLayout
+        android:id="@+id/options_section"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical">
+
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/options_container"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"/>
+
+        <RelativeLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content">
+            <Button
+                style="@style/ActionPrimaryButton"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_alignParentEnd="true"
+                android:text="@string/apply_theme_btn"/>
+        </RelativeLayout>
+
+    </LinearLayout>
+
+</LinearLayout>
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
new file mode 100644
index 0000000..e96bfa7
--- /dev/null
+++ b/res/values/dimens.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+
+     Copyright (C) 2018 The Android Open Source Project
+
+     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.
+-->
+<resources>
+    <dimen name="bottom_navbar_height">56dp</dimen>
+</resources>
\ No newline at end of file
diff --git a/res/values/strings.xml b/res/values/strings.xml
index f04ee7e..8c1fc6d 100755
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -33,4 +33,8 @@
     <!-- Title of a section of the customization picker where the user can select a Wallpaper.
         [CHAR LIMIT=15] -->
     <string name="wallpaper_title">Wallpaper</string>
+
+    <!-- Label for a button that allows the user to apply the currently selected Theme.
+        [CHAR LIMIT=20] -->
+    <string name="apply_theme_btn">Apply Theme</string>
 </resources>
diff --git a/res/values/styles.xml b/res/values/styles.xml
index dcc76e5..dfd7a4b 100644
--- a/res/values/styles.xml
+++ b/res/values/styles.xml
@@ -31,6 +31,7 @@
         <item name="android:windowActionBar">false</item>
         <item name="android:windowNoTitle">true</item>
     </style>
+
     <style name="BottomNavStyle" parent="@style/Widget.MaterialComponents.BottomNavigationView">
         <item name="itemIconTint">@color/bottom_nav_item_color</item>
         <item name="itemTextColor">@color/bottom_nav_item_color</item>
@@ -41,4 +42,12 @@
     <style name="BottomNavTextAppearance" parent="@android:style/TextAppearance.Small">
         <item name="android:textStyle">bold</item>
     </style>
+    <style name="RegularToolbarStyle" parent="@android:style/Widget.DeviceDefault.Light.ActionBar.Solid">
+        <item name="android:background">@color/primary_color</item>
+        <item name="android:elevation">0dp</item>
+    </style>
+
+    <style name="HeaderTextAppearance" parent="@android:style/TextAppearance.DeviceDefault.Widget.ActionBar.Title"/>
+
+    <style name="ActionPrimaryButton" parent="android:Widget.DeviceDefault.Button.Colored"/>
 </resources>
\ No newline at end of file