Tweak tablet keyboard design

This change introduces,
- center align "More" key label
- remove drop shadow from key label
- darker key label color when manual temporary upper case
- narrower pop up mini keyboard
- remove unnecessary key background from pop up mini keyboard
- smaller key label in portrait

Bug: 3216592
Change-Id: I77e0733f467a88aa32e09fcbace56fe08f755229
diff --git a/java/res/xml-xlarge-land/kbd_popup_template.xml b/java/res/xml-xlarge-land/kbd_popup_template.xml
index 5fe9f67..fd348f2 100644
--- a/java/res/xml-xlarge-land/kbd_popup_template.xml
+++ b/java/res/xml-xlarge-land/kbd_popup_template.xml
@@ -19,9 +19,9 @@
 -->
 
 <Keyboard xmlns:latin="http://schemas.android.com/apk/res/com.android.inputmethod.latin"
-    latin:keyWidth="5.0%p"
-    latin:horizontalGap="@dimen/key_horizontal_gap"
+    latin:keyWidth="3.5%p"
+    latin:horizontalGap="0px"
     latin:verticalGap="0px"
-    latin:keyHeight="@dimen/key_height"
+    latin:keyHeight="@dimen/popup_key_height"
     >
 </Keyboard>
diff --git a/java/res/xml-xlarge-land/popup_domains.xml b/java/res/xml-xlarge-land/popup_domains.xml
index 9ed79c8..deedba4 100644
--- a/java/res/xml-xlarge-land/popup_domains.xml
+++ b/java/res/xml-xlarge-land/popup_domains.xml
@@ -20,7 +20,7 @@
 
 <Keyboard
     xmlns:latin="http://schemas.android.com/apk/res/com.android.inputmethod.latin"
-    latin:keyWidth="5.0%p"
+    latin:keyWidth="4.0%p"
     latin:horizontalGap="0px"
     latin:verticalGap="0px"
     latin:keyHeight="@dimen/popup_key_height"
diff --git a/java/res/xml-xlarge-land/popup_smileys.xml b/java/res/xml-xlarge-land/popup_smileys.xml
index bdd6805..e882a50 100644
--- a/java/res/xml-xlarge-land/popup_smileys.xml
+++ b/java/res/xml-xlarge-land/popup_smileys.xml
@@ -20,7 +20,7 @@
 
 <Keyboard
     xmlns:latin="http://schemas.android.com/apk/res/com.android.inputmethod.latin"
-    latin:keyWidth="5.0%p"
+    latin:keyWidth="4.0%p"
     latin:horizontalGap="0px"
     latin:verticalGap="0px"
     latin:keyHeight="@dimen/popup_key_height"