Update Material Dark theme

Bug: 15782668
Change-Id: If3f2439fe9dcd2c05514e73861777337b42273c4
diff --git a/java/res/values/keyboard-icons-lxx-dark.xml b/java/res/values/keyboard-icons-lxx-dark.xml
index 7988e73..b1549f2 100644
--- a/java/res/values/keyboard-icons-lxx-dark.xml
+++ b/java/res/values/keyboard-icons-lxx-dark.xml
@@ -21,7 +21,7 @@
 <resources xmlns:android="http://schemas.android.com/apk/res/android">
     <style name="KeyboardIcons.LXX_Dark">
         <!-- Keyboard icons -->
-        <!-- TODO: Update those icons for LXX theme. -->
+        <!-- TODO: Update those icons for LXX_Dark theme. -->
         <item name="iconShiftKey">@drawable/sym_keyboard_shift_lxx_dark</item>
         <item name="iconDeleteKey">@drawable/sym_keyboard_delete_lxx_dark</item>
         <item name="iconSettingsKey">@drawable/sym_keyboard_settings_lxx_dark</item>