diff --git a/app/src/main/res/values-sw600dp/dimens.xml b/app/src/main/res/values-sw600dp/dimens.xml
deleted file mode 100644
index 44f01db7..00000000
--- a/app/src/main/res/values-sw600dp/dimens.xml
+++ /dev/null
@@ -1,8 +0,0 @@
-<resources>
-
-    <!--
-         Customize dimensions originally defined in res/values/dimens.xml (such as
-         screen margins) for sw600dp devices (e.g. 7" tablets) here.
-    -->
-
-</resources>
diff --git a/app/src/main/res/values-sw720dp-land/dimens.xml b/app/src/main/res/values-sw720dp-land/dimens.xml
deleted file mode 100644
index 61e3fa8f..00000000
--- a/app/src/main/res/values-sw720dp-land/dimens.xml
+++ /dev/null
@@ -1,9 +0,0 @@
-<resources>
-
-    <!--
-         Customize dimensions originally defined in res/values/dimens.xml (such as
-         screen margins) for sw720dp devices (e.g. 10" tablets) in landscape here.
-    -->
-    <dimen name="activity_horizontal_margin">128dp</dimen>
-
-</resources>
diff --git a/app/src/main/res/values/attrs.xml b/app/src/main/res/values/attrs.xml
deleted file mode 100644
index e67df0a3..00000000
--- a/app/src/main/res/values/attrs.xml
+++ /dev/null
@@ -1,14 +0,0 @@
-<resources>
-
-    <!--
-         Declare custom theme attributes that allow changing which styles are
-         used for button bars depending on the API level.
-         ?android:attr/buttonBarStyle is new as of API 11 so this is
-         necessary to support previous API levels.
-    -->
-    <declare-styleable name="ButtonBarContainerTheme">
-        <attr name="buttonBarStyle" format="reference" />
-        <attr name="buttonBarButtonStyle" format="reference" />
-    </declare-styleable>
-
-</resources>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index d25f8585..b8d975b0 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -1,40 +1,25 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <resources>
 
     <!--
-        Base application theme, dependent on API level. This theme is replaced
-        by AppBaseTheme from res/values-vXX/styles.xml on newer devices.

+        Base application theme, dependent on API level. This theme is replaced
+        by AppBaseTheme from res/values-vXX/styles.xml on newer devices.
+
     -->
     <style name="AppBaseTheme" parent="android:Theme">
         <!--
-            Theme customizations available in newer API levels can go in
-            res/values-vXX/styles.xml, while customizations related to
-            backward-compatibility can go here.

+            Theme customizations available in newer API levels can go in
+            res/values-vXX/styles.xml, while customizations related to
+            backward-compatibility can go here.
+
         -->
     </style>
 
     <!-- Application theme. -->
     <style name="AppTheme" parent="AppBaseTheme">
-        <!-- All customizations that are NOT specific to a particular API-level can go here. -->
-        <item name="android:windowActionBar">false</item>
+        <!-- All customizations that are NOT specific to a particular API-level can go here. -->
+        <item name="android:windowActionBar">false</item>
         <item name="android:windowNoTitle">true</item>
     </style>
 
-    <style name="FullscreenTheme" parent="android:Theme.NoTitleBar">
-        <item name="android:windowContentOverlay">@null</item>
-        <item name="android:windowBackground">@null</item>
-        <item name="buttonBarStyle">@style/ButtonBar</item>
-        <item name="buttonBarButtonStyle">@style/ButtonBarButton</item>
-    </style>
-
-    <style name="ButtonBar">
-        <item name="android:paddingLeft">2dp</item>
-        <item name="android:paddingTop">5dp</item>
-        <item name="android:paddingRight">2dp</item>
-        <item name="android:paddingBottom">0dp</item>
-        <item name="android:background">@android:drawable/bottom_bar</item>
-    </style>
-
-    <style name="ButtonBarButton" />
-
 </resources>