Use light emoji icon for Material light tablet keyboard

Bug: 16808603
Change-Id: I39ce0ed8b5580754dfd0cf1494289b0a23863d50
diff --git a/java/res/values/attrs.xml b/java/res/values/attrs.xml
index bfe3856..e89912a 100644
--- a/java/res/values/attrs.xml
+++ b/java/res/values/attrs.xml
@@ -242,7 +242,8 @@
         <attr name="iconZwnjKey" format="reference" />
         <attr name="iconZwjKey" format="reference" />
         <attr name="iconImeKey" format="reference" />
-        <attr name="iconEmojiKey" format="reference" />
+        <attr name="iconEmojiActionKey" format="reference" />
+        <attr name="iconEmojiNormalKey" format="reference" />
     </declare-styleable>
 
     <declare-styleable name="Keyboard_GridRows">
diff --git a/java/res/values/keyboard-icons-holo.xml b/java/res/values/keyboard-icons-holo.xml
index d95ff82..f5484bf 100644
--- a/java/res/values/keyboard-icons-holo.xml
+++ b/java/res/values/keyboard-icons-holo.xml
@@ -35,6 +35,7 @@
         <item name="iconLanguageSwitchKey">@drawable/sym_keyboard_language_switch_dark</item>
         <item name="iconZwnjKey">@drawable/sym_keyboard_zwnj_holo_dark</item>
         <item name="iconZwjKey">@drawable/sym_keyboard_zwj_holo_dark</item>
-        <item name="iconEmojiKey">@drawable/sym_keyboard_smiley_holo_dark</item>
+        <item name="iconEmojiActionKey">@drawable/sym_keyboard_smiley_holo_dark</item>
+        <item name="iconEmojiNormalKey">@drawable/sym_keyboard_smiley_holo_dark</item>
     </style>
 </resources>
diff --git a/java/res/values/keyboard-icons-lxx-dark.xml b/java/res/values/keyboard-icons-lxx-dark.xml
index dfa585c..305df02 100644
--- a/java/res/values/keyboard-icons-lxx-dark.xml
+++ b/java/res/values/keyboard-icons-lxx-dark.xml
@@ -40,6 +40,7 @@
         <item name="iconLanguageSwitchKey">@drawable/sym_keyboard_language_switch_lxx_dark</item>
         <item name="iconZwnjKey">@drawable/sym_keyboard_zwnj_lxx_dark</item>
         <item name="iconZwjKey">@drawable/sym_keyboard_zwj_lxx_dark</item>
-        <item name="iconEmojiKey">@drawable/sym_keyboard_smiley_lxx_dark</item>
+        <item name="iconEmojiActionKey">@drawable/sym_keyboard_smiley_lxx_dark</item>
+        <item name="iconEmojiNormalKey">@drawable/sym_keyboard_smiley_lxx_dark</item>
     </style>
 </resources>
diff --git a/java/res/values/keyboard-icons-lxx-light.xml b/java/res/values/keyboard-icons-lxx-light.xml
index e8a3c56..866dc68 100644
--- a/java/res/values/keyboard-icons-lxx-light.xml
+++ b/java/res/values/keyboard-icons-lxx-light.xml
@@ -40,6 +40,9 @@
         <item name="iconLanguageSwitchKey">@drawable/sym_keyboard_language_switch_lxx_light</item>
         <item name="iconZwnjKey">@drawable/sym_keyboard_zwnj_lxx_light</item>
         <item name="iconZwjKey">@drawable/sym_keyboard_zwj_lxx_light</item>
-        <item name="iconEmojiKey">@drawable/sym_keyboard_smiley_lxx_light</item>
+        <!-- Use white emoji icon (for lxx_dark) because an action key has green/dark color background. -->
+        <item name="iconEmojiActionKey">@drawable/sym_keyboard_smiley_lxx_dark</item>
+        <!-- Use dark green emoji icon (for lxx_light) because a normal key has white color background. -->
+        <item name="iconEmojiNormalKey">@drawable/sym_keyboard_smiley_lxx_light</item>
     </style>
 </resources>