diff --git a/java/res/values/attrs.xml b/java/res/values/attrs.xml
index 5bedd4a..b513d96 100644
--- a/java/res/values/attrs.xml
+++ b/java/res/values/attrs.xml
@@ -111,10 +111,6 @@
         <attr name="keyPreviewOffset" format="dimension" />
         <!-- Height of the key press feedback popup. -->
         <attr name="keyPreviewHeight" format="dimension" />
-        <!-- Duration of key preview popup zoom in animation in millisecond -->
-        <attr name="keyPreviewZoomInDuration" format="integer" />
-        <!-- Duration of key preview popup zoom out animation in millisecond -->
-        <attr name="keyPreviewZoomOutDuration" format="integer" />
         <!-- Delay after key releasing and key press feedback dismissing in millisecond -->
         <attr name="keyPreviewLingerTimeout" format="integer" />
         <!-- Layout resource for more keys keyboard -->
diff --git a/java/res/values/config-common.xml b/java/res/values/config-common.xml
index c920152..1b44bad 100644
--- a/java/res/values/config-common.xml
+++ b/java/res/values/config-common.xml
@@ -35,8 +35,10 @@
 
     <integer name="config_ignore_alt_code_key_timeout">350</integer>
 
-    <integer name="config_key_preview_zoom_in_duration">35</integer>
-    <integer name="config_key_preview_zoom_out_duration">40</integer>
+    <integer name="config_key_preview_show_up_duration">35</integer>
+    <integer name="config_key_preview_dismiss_duration">40</integer>
+    <fraction name="config_key_preview_show_up_start_scale">70%</fraction>
+    <fraction name="config_key_preview_dismiss_end_scale">70%</fraction>
     <integer name="config_key_preview_linger_timeout">70</integer>
     <!-- Suppress showing key preview duration after batch input in millisecond -->
     <integer name="config_suppress_key_preview_after_batch_input_duration">1000</integer>
diff --git a/java/res/values/strings.xml b/java/res/values/strings.xml
index 70f4c18..b762af3 100644
--- a/java/res/values/strings.xml
+++ b/java/res/values/strings.xml
@@ -486,6 +486,14 @@
     <string name="prefs_keypress_vibration_duration_settings">Keypress vibration duration</string>
     <!-- Title of the settings for keypress sound volume [CHAR LIMIT=35] -->
     <string name="prefs_keypress_sound_volume_settings">Keypress sound volume</string>
+    <!-- Title of the settings for key popup show up animation duration (in milliseconds) [CHAR LIMIT=35] -->
+    <string name="prefs_key_popup_show_up_duration_settings" translatable="false">Key popup show up duration</string>
+    <!-- Title of the settings for key popup dismiss animation duration (in milliseconds) [CHAR LIMIT=35] -->
+    <string name="prefs_key_popup_dismiss_duration_settings" translatable="false">Key popup dismiss duration</string>
+    <!-- Title of the settings for key popup show up animation start scale (in percentile) [CHAR LIMIT=35] -->
+    <string name="prefs_key_popup_show_up_start_scale_settings" translatable="false">Key popup show up start scale</string>
+    <!-- Title of the settings for key popup dismiss animation end scale (in percentile) [CHAR LIMIT=35] -->
+    <string name="prefs_key_popup_dismiss_end_scale_settings" translatable="false">Key popup dismiss end scale</string>
     <!-- Title of the settings for reading an external dictionary file -->
     <string name="prefs_read_external_dictionary">Read external dictionary file</string>
     <!-- Title of the settings for using only personalization dictionary -->
diff --git a/java/res/values/themes-common.xml b/java/res/values/themes-common.xml
index 3bfd73a..fc96d19 100644
--- a/java/res/values/themes-common.xml
+++ b/java/res/values/themes-common.xml
@@ -77,8 +77,6 @@
         <item name="ignoreAltCodeKeyTimeout">@integer/config_ignore_alt_code_key_timeout</item>
         <item name="keyPreviewLayout">@layout/key_preview</item>
         <item name="keyPreviewHeight">@dimen/config_key_preview_height</item>
-        <item name="keyPreviewZoomInDuration">@integer/config_key_preview_zoom_in_duration</item>
-        <item name="keyPreviewZoomOutDuration">@integer/config_key_preview_zoom_out_duration</item>
         <item name="keyPreviewLingerTimeout">@integer/config_key_preview_linger_timeout</item>
         <item name="moreKeysKeyboardLayout">@layout/more_keys_keyboard</item>
         <item name="showMoreKeysKeyboardAtTouchedPoint">@bool/config_show_more_keys_keyboard_at_touched_point</item>