Tweak candidate view height and etc.

Change-Id: I91963d0be122baf2274ea03b5028a66259a2cdb6
diff --git a/java/res/values-xlarge-land/dimens.xml b/java/res/values-xlarge-land/dimens.xml
index e1a53f9..5b9d50a 100644
--- a/java/res/values-xlarge-land/dimens.xml
+++ b/java/res/values-xlarge-land/dimens.xml
@@ -19,7 +19,8 @@
 -->
 
 <resources>
-    <dimen name="key_label_text_size">18dip</dimen>
+    <dimen name="key_letter_size">28dip</dimen>
+    <dimen name="key_label_text_size">20dip</dimen>
     <!-- left or right padding of label alignment -->
     <dimen name="key_label_horizontal_alignment_padding">18dip</dimen>
     <dimen name="candidate_strip_padding">40.0mm</dimen>