diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 1012cdd..d02500c 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -34,7 +34,7 @@
             android:theme="@style/AppTheme.NoActionBar" />
         <activity
             android:name=".ui.customization.CustomizationActivity"
-            android:label="@string/pref_ui_customization"
+            android:label="@string/customization_settings"
             android:theme="@style/Theme.AppCompat.NoActionBar"
             android:windowSoftInputMode="adjustResize|stateHidden" />
         <activity
diff --git a/app/src/main/assets/font.ttf b/app/src/main/assets/UbuntuMono.ttf
similarity index 100%
rename from app/src/main/assets/font.ttf
rename to app/src/main/assets/UbuntuMono.ttf
diff --git a/app/src/main/java/io/neoterm/App.kt b/app/src/main/java/io/neoterm/App.kt
index b1254f5..3a71ce0 100644
--- a/app/src/main/java/io/neoterm/App.kt
+++ b/app/src/main/java/io/neoterm/App.kt
@@ -1,8 +1,8 @@
 package io.neoterm
 
 import android.app.Application
+import io.neoterm.customize.color.ColorSchemeManager
 import io.neoterm.customize.font.FontManager
-import io.neoterm.preference.NeoPreference
 
 /**
  * @author kiva
@@ -10,7 +10,7 @@ import io.neoterm.preference.NeoPreference
 class App : Application() {
     override fun onCreate() {
         super.onCreate()
+        ColorSchemeManager.init(this)
         FontManager.init(this)
-        NeoPreference.init(this)
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/io/neoterm/customize/NeoTermPath.kt b/app/src/main/java/io/neoterm/customize/NeoTermPath.kt
index 2fe8432..de8d6e1 100644
--- a/app/src/main/java/io/neoterm/customize/NeoTermPath.kt
+++ b/app/src/main/java/io/neoterm/customize/NeoTermPath.kt
@@ -12,8 +12,11 @@ object NeoTermPath {
     const val USR_PATH = "$ROOT_PATH/usr"
     const val HOME_PATH = "$ROOT_PATH/home"
 
-    const val EKS_PATH = "$USR_PATH/share/eks"
+    const val CUSTOM_PATH = "$HOME_PATH/.neoterm"
+    const val EKS_PATH = "$CUSTOM_PATH/eks"
     const val EKS_DEFAULT_FILE = "$EKS_PATH/default.eks"
+    const val FONT_PATH = "$CUSTOM_PATH/font"
+    const val COLORS_PATH = "$CUSTOM_PATH/color"
 
     const val SOURCE_FILE = "$USR_PATH/etc/apt/sources.list"
     const val PACKAGE_LIST_DIR = "$USR_PATH/var/lib/apt/lists"
diff --git a/app/src/main/java/io/neoterm/customize/color/ColorSchemeManager.kt b/app/src/main/java/io/neoterm/customize/color/ColorSchemeManager.kt
index 13242f0..31c8b8c 100644
--- a/app/src/main/java/io/neoterm/customize/color/ColorSchemeManager.kt
+++ b/app/src/main/java/io/neoterm/customize/color/ColorSchemeManager.kt
@@ -1,11 +1,18 @@
 package io.neoterm.customize.color
 
+import android.content.Context
 import io.neoterm.backend.TerminalEmulator
+import io.neoterm.customize.NeoTermPath
+import java.io.File
 
 /**
  * @author kiva
  */
 object ColorSchemeManager {
+    fun init(context: Context) {
+        File(NeoTermPath.COLORS_PATH).mkdirs()
+    }
+
     fun applyColorScheme(emulator: TerminalEmulator?, colorScheme: NeoColorScheme?) {
         if (emulator != null && colorScheme != null) {
             colorScheme.applyLocal(emulator)
diff --git a/app/src/main/java/io/neoterm/customize/font/FontManager.kt b/app/src/main/java/io/neoterm/customize/font/FontManager.kt
index 1395623..638c55d 100644
--- a/app/src/main/java/io/neoterm/customize/font/FontManager.kt
+++ b/app/src/main/java/io/neoterm/customize/font/FontManager.kt
@@ -2,17 +2,38 @@ package io.neoterm.customize.font
 
 import android.content.Context
 import android.graphics.Typeface
+import io.neoterm.R
+import io.neoterm.customize.NeoTermPath
+import io.neoterm.preference.NeoPreference
+import io.neoterm.utils.FileUtils
+import java.io.File
 
 /**
  * @author kiva
  */
 object FontManager {
+    private val DEFAULT_FONT_NAME = "UbuntuMono"
+
     private lateinit var DEFAULT_FONT: NeoFont
-    private lateinit var fonts: MutableList<String>
+    private lateinit var fonts: MutableMap<String, NeoFont>
 
     fun init(context: Context) {
-        fonts = mutableListOf()
-        DEFAULT_FONT = NeoFont(Typeface.createFromAsset(context.assets, "font.ttf"))
+        File(NeoTermPath.FONT_PATH).mkdirs()
+        fonts = mutableMapOf()
+
+        val defaultFontFile = fontFile(DEFAULT_FONT_NAME)
+        if (!defaultFontFile.exists()) {
+            if (!extractDefaultFont(context, defaultFontFile)) {
+                DEFAULT_FONT = loadDefaultFontFromAsset(context)
+                fonts.put(DEFAULT_FONT_NAME, DEFAULT_FONT)
+                return
+            }
+        }
+
+        if (!refreshFontList()) {
+            DEFAULT_FONT = loadDefaultFontFromAsset(context)
+            fonts.put(DEFAULT_FONT_NAME, DEFAULT_FONT)
+        }
     }
 
     fun getDefaultFont(): NeoFont {
@@ -20,6 +41,71 @@ object FontManager {
     }
 
     fun getCurrentFont(): NeoFont {
-        return getDefaultFont()
+        return fonts[getCurrentFontName()]!!
+    }
+
+    fun setCurrentFont(fontName: String) {
+        NeoPreference.store(R.string.key_customization_font, fontName)
+    }
+
+    fun getCurrentFontName(): String {
+        var currentFontName = NeoPreference.loadString(R.string.key_customization_font, DEFAULT_FONT_NAME)
+        if (!fonts.containsKey(currentFontName)) {
+            currentFontName = DEFAULT_FONT_NAME
+            NeoPreference.store(R.string.key_customization_font, DEFAULT_FONT)
+        }
+        return currentFontName
+    }
+
+    fun getFont(fontName: String): NeoFont {
+        return if (fonts.containsKey(fontName)) fonts[fontName]!! else getCurrentFont()
+    }
+
+    fun getFontNames(): List<String> {
+        val list = ArrayList<String>()
+        list += fonts.keys
+        return list
+    }
+
+    fun refreshFontList(): Boolean {
+        fonts.clear()
+        fonts.put("Android Monospace", NeoFont(Typeface.MONOSPACE))
+        fonts.put("Android Sans Serif", NeoFont(Typeface.SANS_SERIF))
+        fonts.put("Android Serif", NeoFont(Typeface.SERIF))
+        val fontDir = File(NeoTermPath.FONT_PATH)
+        for (file in fontDir.listFiles({ pathname -> pathname.name.endsWith(".ttf") })) {
+            val fontName = fontName(file)
+            val font = NeoFont(file)
+            fonts.put(fontName, font)
+        }
+        if (fonts.containsKey(DEFAULT_FONT_NAME)) {
+            DEFAULT_FONT = fonts[DEFAULT_FONT_NAME]!!
+            return true
+        }
+        return false
+    }
+
+    private fun loadDefaultFontFromAsset(context: Context): NeoFont {
+        return NeoFont(Typeface.createFromAsset(context.assets, "$DEFAULT_FONT_NAME.ttf"))
+    }
+
+    private fun extractDefaultFont(context: Context, defaultFontFile: File): Boolean {
+        try {
+            val assets = context.assets
+            val ttfInput = assets.open("$DEFAULT_FONT_NAME.ttf")
+            FileUtils.writeFile(defaultFontFile, ttfInput)
+            ttfInput.close()
+            return true
+        } catch (e: Exception) {
+            return false
+        }
+    }
+
+    private fun fontFile(fontName: String): File {
+        return File("${NeoTermPath.FONT_PATH}/$fontName.ttf")
+    }
+
+    private fun fontName(fontFile: File): String {
+        return fontFile.nameWithoutExtension
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/io/neoterm/customize/font/NeoFont.kt b/app/src/main/java/io/neoterm/customize/font/NeoFont.kt
index e40a5d9..0665fa8 100644
--- a/app/src/main/java/io/neoterm/customize/font/NeoFont.kt
+++ b/app/src/main/java/io/neoterm/customize/font/NeoFont.kt
@@ -1,13 +1,31 @@
 package io.neoterm.customize.font
 
 import android.graphics.Typeface
-import io.neoterm.view.TerminalView
+import java.io.File
 
 /**
  * @author kiva
  */
-class NeoFont(val typeface: Typeface) {
-    fun applyLocal(terminalView: TerminalView?) {
-        terminalView?.setTypeface(typeface)
+class NeoFont {
+    private var fontFile: File? = null
+    private var typeface: Typeface? = null
+
+    constructor(fontFile: File) {
+        this.fontFile = fontFile
+    }
+
+    constructor(typeface: Typeface) {
+        this.typeface = typeface
+    }
+
+    fun getTypeFace(): Typeface? {
+        if (typeface == null && fontFile == null) {
+            return null
+        }
+
+        if (typeface == null) {
+            typeface = Typeface.createFromFile(fontFile)
+        }
+        return typeface
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/io/neoterm/ui/NeoTermActivity.kt b/app/src/main/java/io/neoterm/ui/NeoTermActivity.kt
index 2aae5a6..d0a4f63 100644
--- a/app/src/main/java/io/neoterm/ui/NeoTermActivity.kt
+++ b/app/src/main/java/io/neoterm/ui/NeoTermActivity.kt
@@ -50,6 +50,7 @@ class NeoTermActivity : AppCompatActivity(), ServiceConnection, SharedPreference
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
+        NeoPreference.init(this)
         NeoPermission.initAppPermission(this, NeoPermission.REQUEST_APP_PERMISSION)
 
         val fullscreen = NeoPreference.loadBoolean(R.string.key_ui_fullscreen, false)
diff --git a/app/src/main/java/io/neoterm/ui/customization/CustomizationActivity.kt b/app/src/main/java/io/neoterm/ui/customization/CustomizationActivity.kt
index 0dbf4b9..56a3183 100644
--- a/app/src/main/java/io/neoterm/ui/customization/CustomizationActivity.kt
+++ b/app/src/main/java/io/neoterm/ui/customization/CustomizationActivity.kt
@@ -4,9 +4,14 @@ import android.os.Bundle
 import android.support.v7.app.AppCompatActivity
 import android.support.v7.widget.Toolbar
 import android.view.MenuItem
+import android.view.View
+import android.widget.AdapterView
+import android.widget.ArrayAdapter
+import android.widget.Spinner
 import io.neoterm.R
 import io.neoterm.backend.TerminalSession
 import io.neoterm.customize.NeoTermPath
+import io.neoterm.customize.font.FontManager
 import io.neoterm.utils.TerminalUtils
 import io.neoterm.view.BasicSessionCallback
 import io.neoterm.view.BasicViewClient
@@ -35,6 +40,26 @@ class CustomizationActivity: AppCompatActivity() {
         session = TerminalUtils.createSession(this, "${NeoTermPath.USR_PATH}/bin/applets/echo",
                 arrayOf("echo", "Hello NeoTerm."), null, null, sessionCallback, false)
         terminalView.attachSession(session)
+
+        setupSpinner(R.id.custom_font_spinner, FontManager.getFontNames(), FontManager.getCurrentFontName(), object : AdapterView.OnItemSelectedListener {
+            override fun onNothingSelected(parent: AdapterView<*>?) {
+            }
+
+            override fun onItemSelected(parent: AdapterView<*>?, view: View?, position: Int, id: Long) {
+                val fontName = parent!!.adapter!!.getItem(position) as String
+                terminalView.setTypeface(FontManager.getFont(fontName).getTypeFace())
+                FontManager.setCurrentFont(fontName)
+            }
+        })
+    }
+
+    private fun setupSpinner(id: Int, data: List<String>, selected: String, listener: AdapterView.OnItemSelectedListener) {
+        val spinner = findViewById(id) as Spinner
+        val adapter = ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, data)
+        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item)
+        spinner.adapter = adapter
+        spinner.onItemSelectedListener = listener
+        spinner.setSelection(if (data.contains(selected)) data.indexOf(selected) else 0)
     }
 
     override fun onDestroy() {
diff --git a/app/src/main/java/io/neoterm/utils/TerminalUtils.kt b/app/src/main/java/io/neoterm/utils/TerminalUtils.kt
index 57ad46f..3afa26b 100644
--- a/app/src/main/java/io/neoterm/utils/TerminalUtils.kt
+++ b/app/src/main/java/io/neoterm/utils/TerminalUtils.kt
@@ -17,7 +17,7 @@ import java.io.File
 object TerminalUtils {
     fun setupTerminalView(terminalView: TerminalView, terminalViewClient: BasicViewClient? = null) {
         terminalView.textSize = NeoPreference.loadInt(NeoPreference.KEY_FONT_SIZE, 30)
-        terminalView.setTypeface(FontManager.getCurrentFont().typeface)
+        terminalView.setTypeface(FontManager.getCurrentFont().getTypeFace())
         if (terminalViewClient != null) {
             terminalView.setOnKeyListener(terminalViewClient)
         }
diff --git a/app/src/main/java/io/neoterm/view/ExtraKeysView.java b/app/src/main/java/io/neoterm/view/ExtraKeysView.java
index d27c855..373d7df 100755
--- a/app/src/main/java/io/neoterm/view/ExtraKeysView.java
+++ b/app/src/main/java/io/neoterm/view/ExtraKeysView.java
@@ -185,7 +185,7 @@ public final class ExtraKeysView extends LinearLayout {
             button = new Button(getContext(), null, android.R.attr.buttonBarButtonStyle);
         }
 
-        button.setTypeface(FontManager.INSTANCE.getCurrentFont().getTypeface());
+        button.setTypeface(FontManager.INSTANCE.getCurrentFont().getTypeFace());
         button.setText(extraButton.buttonText);
         button.setTextColor(NORMAL_TEXT_COLOR);
         button.setAllCaps(false);
diff --git a/app/src/main/res/layout/ui_customization.xml b/app/src/main/res/layout/ui_customization.xml
index 0b76d45..728be48 100644
--- a/app/src/main/res/layout/ui_customization.xml
+++ b/app/src/main/res/layout/ui_customization.xml
@@ -20,28 +20,42 @@
         android:layout_height="wrap_content"
         android:layout_alignParentBottom="true"
         android:layout_margin="@dimen/text_margin"
-        android:orientation="horizontal">
+        android:orientation="vertical">
 
-        <Button
-            style="?buttonBarButtonStyle"
-            android:layout_width="0dp"
-            android:layout_height="match_parent"
-            android:layout_weight="1.0"
-            android:text="@string/pref_customization_font" />
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="@dimen/text_margin"
+            android:orientation="horizontal">
 
-        <Button
-            style="?buttonBarButtonStyle"
-            android:layout_width="0dp"
-            android:layout_height="match_parent"
-            android:layout_weight="1.0"
-            android:text="@string/pref_customization_color_scheme" />
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/pref_customization_font" />
+
+            <Spinner
+                android:id="@+id/custom_font_spinner"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginStart="@dimen/text_margin" />
+        </LinearLayout>
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/pref_customization_color_scheme" />
+
+            <Spinner
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginStart="@dimen/text_margin" />
+        </LinearLayout>
 
-        <Button
-            style="?buttonBarButtonStyle"
-            android:layout_width="0dp"
-            android:layout_height="match_parent"
-            android:layout_weight="1.0"
-            android:text="@string/pref_customization_eks" />
     </LinearLayout>
 
     <RelativeLayout
diff --git a/app/src/main/res/values-zh/strings.xml b/app/src/main/res/values-zh/strings.xml
index 9e0c256..03e74f3 100644
--- a/app/src/main/res/values-zh/strings.xml
+++ b/app/src/main/res/values-zh/strings.xml
@@ -19,8 +19,8 @@
     <string name="pref_package_source">软件源</string>
     <string name="pref_ui_close_tab_anim_next_tab">向下切换窗口</string>
     <string name="pref_ui_close_tab_anim_next_tab_desc">关闭当前窗口时切换到下一个窗口而不是上一个</string>
-    <string name="pref_ui_customization_desc">字体 &amp; 主题 &amp; 拓展键盘</string>
-    <string name="pref_ui_customization">个性化</string>
+    <string name="customization_settings_desc">字体，主题，拓展键盘</string>
+    <string name="customization_settings">个性化</string>
     <string name="pref_ui_fullscreen">全屏</string>
     <string name="pref_ui_hide_toolbar">隐藏标题栏</string>
     <string name="pref_ui_hide_toolbar_desc">键盘显示时隐藏标题栏</string>
@@ -47,7 +47,7 @@
     <string name="package_details">软件包: %s\n版本: %s\n依赖: %s\n占用空间: %s\n描述: %s\n主页: %s</string>
     <string name="package_list_empty">软件包列表为空，请检查你的软件源</string>
     <string name="menu_refresh_list">刷新</string>
-    <string name="menu_update">更新 &amp; 刷新</string>
+    <string name="menu_update">更新， 刷新</string>
 
     <string-array name="pref_general_program_selection_entries">
         <item>只使用 NeoTerm</item>
@@ -63,4 +63,7 @@
         <item>输入…</item>
     </string-array>
     <string name="pref_customization_eks">拓展键盘</string>
+    <string name="general_settings_desc">响铃，振动，Shell</string>
+    <string name="ui_settings_desc">全屏，标题栏，快捷键盘</string>
+    <string name="package_settings_desc">源，更新，升级</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/preference_keys.xml b/app/src/main/res/values/preference_keys.xml
index 31cb4d7..12fbb6f 100644
--- a/app/src/main/res/values/preference_keys.xml
+++ b/app/src/main/res/values/preference_keys.xml
@@ -8,11 +8,12 @@
 
     <string name="key_ui_fullscreen" translatable="false">neoterm_ui_fullscreen</string>
     <string name="key_ui_hide_toolbar" translatable="false">neoterm_ui_hide_toolbar</string>
-    <string name="key_ui_font" translatable="false">neoterm_ui_font</string>
-    <string name="key_ui_color_scheme" translatable="false">neoterm_ui_color_scheme</string>
     <string name="key_ui_next_tab_anim" translatable="false">neoterm_ui_next_tab_anim</string>
     <string name="key_ui_suggestions" translatable="false">neoterm_ui_suggestions</string>
     <string name="key_ui_wide_char_weigh_explicit" translatable="false">neoterm_ui_wide_char_explicit</string>
 
     <string name="key_package_source" translatable="false">neoterm_package_source</string>
+
+    <string name="key_customization_font" translatable="false">neoterm_ui_font</string>
+    <string name="key_customization_color_scheme" translatable="false">neoterm_ui_color_scheme</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index a055e09..700639c 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -10,8 +10,13 @@
     <string name="about">About</string>
     <string name="settings">Settings</string>
     <string name="general_settings">General Settings</string>
+    <string name="general_settings_desc">Bell, Vibrate, Shell</string>
     <string name="ui_settings">UI Settings</string>
+    <string name="ui_settings_desc">FullScreen, Title Bar, Suggestions</string>
     <string name="package_settings">Package Settings</string>
+    <string name="package_settings_desc">Source, Updates, Upgrades</string>
+    <string name="customization_settings_desc">Font, ColorScheme, ExtraKeys</string>
+    <string name="customization_settings">Customization</string>
 
     <string name="installer_message">Installing</string>
     <string name="installer_install_zsh_manually">You may install zsh and setup suggestions by executing: ~/install-zsh.sh</string>
@@ -26,8 +31,6 @@
     <string name="pref_general_shell_desc">Which shell should we use when login</string>
     <string name="pref_general_program_selection">Program Selection</string>
     <string name="pref_general_program_selection_desc">When both Neo Term and your Android OS have a program, which one should we choose?</string>
-    <string name="pref_ui_customization_desc">Font &amp; ColorScheme &amp; ExtraKeys</string>
-    <string name="pref_ui_customization">Customization</string>
     <string name="pref_ui_fullscreen">Full Screen</string>
     <string name="pref_ui_hide_toolbar">Hide Toolbar</string>
     <string name="pref_ui_hide_toolbar_desc">Hide toolbar when keyboard is showing</string>
@@ -54,7 +57,7 @@
     <string name="package_details">Package: %s\nVersion: %s\nDepends: %s\nInstalled Size: %s\nDescription: %s\nHome Page: %s</string>
     <string name="package_list_empty">Package list is empty, please check out your source.</string>
     <string name="menu_refresh_list">Refresh</string>
-    <string name="menu_update">Update &amp; Refresh</string>
+    <string name="menu_update">Update, Refresh</string>
 
     <string-array name="pref_general_shell_entries" translatable="false">
         <item>sh</item>
diff --git a/app/src/main/res/xml/settings_main.xml b/app/src/main/res/xml/settings_main.xml
index 68b8c47..2823d1a 100644
--- a/app/src/main/res/xml/settings_main.xml
+++ b/app/src/main/res/xml/settings_main.xml
@@ -3,6 +3,7 @@
 
     <Preference
         android:icon="@drawable/ic_general_white_36dp"
+        android:summary="@string/general_settings_desc"
         android:title="@string/general_settings">
         <intent
             android:targetClass="io.neoterm.ui.settings.GeneralSettingsActivity"
@@ -11,14 +12,25 @@
 
     <Preference
         android:icon="@drawable/ic_ui_white_36dp"
+        android:summary="@string/ui_settings_desc"
         android:title="@string/ui_settings">
         <intent
             android:targetClass="io.neoterm.ui.settings.UISettingsActivity"
             android:targetPackage="io.neoterm" />
     </Preference>
 
+    <Preference
+        android:icon="@drawable/ic_customization_white_36dp"
+        android:summary="@string/customization_settings_desc"
+        android:title="@string/customization_settings">
+        <intent
+            android:targetClass="io.neoterm.ui.customization.CustomizationActivity"
+            android:targetPackage="io.neoterm" />
+    </Preference>
+
     <Preference
         android:icon="@drawable/ic_apps_white_36dp"
+        android:summary="@string/package_settings_desc"
         android:title="@string/package_settings">
         <intent
             android:targetClass="io.neoterm.ui.pm.PackageManagerActivity"
diff --git a/app/src/main/res/xml/settings_ui.xml b/app/src/main/res/xml/settings_ui.xml
index 17dfc1c..72bf508 100644
--- a/app/src/main/res/xml/settings_ui.xml
+++ b/app/src/main/res/xml/settings_ui.xml
@@ -1,14 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
-
-    <Preference
-        android:summary="@string/pref_ui_customization_desc"
-        android:title="@string/pref_ui_customization">
-        <intent
-            android:targetClass="io.neoterm.ui.customization.CustomizationActivity"
-            android:targetPackage="io.neoterm" />
-    </Preference>
-
     <CheckBoxPreference
         android:defaultValue="false"
         android:key="@string/key_ui_fullscreen"