diff --git a/java/res/values-xlarge/config.xml b/java/res/values-xlarge/config.xml
index f075b1b..ed8dc3e 100644
--- a/java/res/values-xlarge/config.xml
+++ b/java/res/values-xlarge/config.xml
@@ -22,7 +22,8 @@
     <bool name="config_enable_show_settings_key_option">false</bool>
     <bool name="config_enable_show_subtype_settings">false</bool>
     <bool name="config_enable_show_voice_key_option">false</bool>
-    <bool name="config_enable_show_popup_on_keypress_option">false</bool>
+    <!-- TODO: This configuration value is temporary set true to check popup preview behavior. -->
+    <bool name="config_enable_show_popup_on_keypress_option">true</bool>
     <bool name="config_enable_show_recorrection_option">false</bool>
     <bool name="config_enable_quick_fixes_option">false</bool>
     <bool name="config_enable_bigram_suggestions_option">false</bool>
diff --git a/java/res/values-xlarge/dimens.xml b/java/res/values-xlarge/dimens.xml
index 6928320..cdb6e89 100644
--- a/java/res/values-xlarge/dimens.xml
+++ b/java/res/values-xlarge/dimens.xml
@@ -19,7 +19,7 @@
 -->
 
 <resources>
-    <!-- keyboardHeight = key_height*4 + key_bottom_gap*3 -->
+    <!-- keyboardHeight = key_height*4 + key_bottom_gap*3, key_height=12mm -->
     <dimen name="keyboardHeight">48.0mm</dimen>
     <!-- key_height + key_bottom_gap = popup_key_height -->
     <!-- <dimen name="key_height">14.5mm</dimen> -->
@@ -28,8 +28,7 @@
     <dimen name="popup_key_height">10.0mm</dimen>
     <dimen name="keyboard_top_padding">1.1mm</dimen>
     <dimen name="keyboard_bottom_padding">0.0mm</dimen>
-    <!-- key_height x 1.0 -->
-    <dimen name="key_preview_height">13.0mm</dimen>
+    <dimen name="mini_keyboard_horizontal_padding_holo">40dip</dimen>
     <dimen name="mini_keyboard_key_horizontal_padding">12dip</dimen>
     <!-- Amount of allowance for selecting keys in a mini popup keyboard by sliding finger. -->
     <!-- popup_key_height x 1.2 -->
@@ -39,9 +38,11 @@
 
     <dimen name="key_letter_size">26dip</dimen>
     <dimen name="key_label_text_size">16dip</dimen>
-    <dimen name="key_preview_text_size_large">24dip</dimen>
     <!-- left or right padding of label alignment -->
     <dimen name="key_label_horizontal_alignment_padding">6dip</dimen>
+    <dimen name="key_preview_text_size_large">24dip</dimen>
+    <dimen name="key_preview_height_holo">23.0mm</dimen>
+    <dimen name="key_preview_offset_holo">8.0mm</dimen>
 
     <dimen name="candidate_strip_height">46dip</dimen>
     <dimen name="candidate_strip_padding">15.0mm</dimen>