diff --git a/java/res/values/attrs.xml b/java/res/values/attrs.xml
index 6b063ef..d89f55a 100644
--- a/java/res/values/attrs.xml
+++ b/java/res/values/attrs.xml
@@ -68,6 +68,10 @@
         <attr name="keyPreviewLayout" format="reference" />
         <!-- The background for key press feedback. -->
         <attr name="keyPreviewBackground" format="reference" />
+        <!-- The background for the left edge key press feedback. -->
+        <attr name="keyPreviewLeftBackground" format="reference" />
+        <!-- The background for the right edge key press feedback. -->
+        <attr name="keyPreviewRightBackground" format="reference" />
         <!-- The background for spacebar press feedback. -->
         <attr name="keyPreviewSpacebarBackground" format="reference" />
         <!-- The text color for key press feedback. -->
diff --git a/java/res/values/styles.xml b/java/res/values/styles.xml
index 1f1488e..08301be 100644
--- a/java/res/values/styles.xml
+++ b/java/res/values/styles.xml
@@ -51,6 +51,8 @@
         <item name="keyUppercaseLetterActivatedColor">#CCE0E4E5</item>
         <item name="keyPreviewLayout">@layout/key_preview</item>
         <item name="keyPreviewBackground">@drawable/keyboard_key_feedback</item>
+        <item name="keyPreviewLeftBackground">@null</item>
+        <item name="keyPreviewRightBackground">@null</item>
         <item name="keyPreviewSpacebarBackground">@drawable/keyboard_key_feedback</item>
         <item name="keyPreviewTextColor">#FFFFFFFF</item>
         <item name="keyPreviewOffset">@dimen/key_preview_offset</item>
@@ -152,6 +154,8 @@
         <item name="keyUppercaseLetterInactivatedColor">#66E0E4E5</item>
         <item name="keyUppercaseLetterActivatedColor">#FFFFFFFF</item>
         <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="keyPreviewSpacebarBackground">@drawable/transparent</item>
         <item name="keyPreviewTextColor">#FFFFFFFF</item>
         <item name="keyPreviewHeight">@dimen/key_preview_height_ics</item>