diff --git a/java/res/values/attrs.xml b/java/res/values/attrs.xml
index 4dfa5ab..e569e83 100644
--- a/java/res/values/attrs.xml
+++ b/java/res/values/attrs.xml
@@ -88,6 +88,10 @@
         <attr name="keyPreviewLeftBackground" format="reference" />
         <!-- The background for the right edge key press feedback. -->
         <attr name="keyPreviewRightBackground" format="reference" />
+        <!-- The width of rectangle part of the key press feedback background. -->
+        <attr name="keyPreviewBackgroundWidth" format="dimension" />
+        <!-- The height of rectangle part of the key press feedback background. -->
+        <attr name="keyPreviewBackgroundHeight" format="dimension" />
         <!-- The text color for key press feedback. -->
         <attr name="keyPreviewTextColor" format="color" />
         <!-- Vertical offset of the key press feedback from the key. -->
diff --git a/java/res/values/styles.xml b/java/res/values/styles.xml
index 30c0e5a..43aa583 100644
--- a/java/res/values/styles.xml
+++ b/java/res/values/styles.xml
@@ -259,6 +259,8 @@
         <item name="keyPreviewBackground">@drawable/keyboard_key_feedback_ics</item>
         <item name="keyPreviewLeftBackground">@drawable/keyboard_key_feedback_left_ics</item>
         <item name="keyPreviewRightBackground">@drawable/keyboard_key_feedback_right_ics</item>
+        <item name="keyPreviewBackgroundWidth">@dimen/keyboard_key_feedback_background_holo_width</item>
+        <item name="keyPreviewBackgroundHeight">@dimen/keyboard_key_feedback_background_holo_height</item>
         <item name="keyPreviewTextColor">#FFFFFFFF</item>
         <item name="keyPreviewHeight">@dimen/key_preview_height_ics</item>
         <item name="keyPreviewOffset">@dimen/key_preview_offset_ics</item>