diff --git a/java/res/values-land/dimens.xml b/java/res/values-land/dimens.xml
index 6259725..fbfbb51 100644
--- a/java/res/values-land/dimens.xml
+++ b/java/res/values-land/dimens.xml
@@ -53,6 +53,8 @@
     <fraction name="key_uppercase_letter_ratio">40%</fraction>
     <fraction name="key_preview_text_ratio">90%</fraction>
     <fraction name="spacebar_text_ratio">40.000%</fraction>
+    <fraction name="key_letter_ratio_5rows">78%</fraction>
+    <fraction name="key_uppercase_letter_ratio_5rows">48%</fraction>
     <dimen name="key_preview_offset">0.0dp</dimen>
 
     <dimen name="key_preview_offset_ics">1.6dp</dimen>
diff --git a/java/res/values-sw600dp-land/dimens.xml b/java/res/values-sw600dp-land/dimens.xml
index a478df8..8283cd9 100644
--- a/java/res/values-sw600dp-land/dimens.xml
+++ b/java/res/values-sw600dp-land/dimens.xml
@@ -51,6 +51,8 @@
     <fraction name="key_hint_label_ratio">34%</fraction>
     <fraction name="key_uppercase_letter_ratio">29%</fraction>
     <fraction name="spacebar_text_ratio">30.0%</fraction>
+    <fraction name="key_letter_ratio_5rows">62%</fraction>
+    <fraction name="key_uppercase_letter_ratio_5rows">36%</fraction>
     <dimen name="key_uppercase_letter_padding">4dp</dimen>
 
     <dimen name="suggestions_strip_padding">252.0dp</dimen>
diff --git a/java/res/values-sw600dp/dimens.xml b/java/res/values-sw600dp/dimens.xml
index 5596ba4..78aa605 100644
--- a/java/res/values-sw600dp/dimens.xml
+++ b/java/res/values-sw600dp/dimens.xml
@@ -63,6 +63,8 @@
     <fraction name="key_uppercase_letter_ratio">22%</fraction>
     <fraction name="key_preview_text_ratio">50%</fraction>
     <fraction name="spacebar_text_ratio">28.0%</fraction>
+    <fraction name="key_letter_ratio_5rows">52%</fraction>
+    <fraction name="key_uppercase_letter_ratio_5rows">27%</fraction>
     <dimen name="key_preview_height">94.5dp</dimen>
     <dimen name="key_preview_offset">16.0dp</dimen>
 
diff --git a/java/res/values-sw768dp-land/dimens.xml b/java/res/values-sw768dp-land/dimens.xml
index b95c858..ac94c92 100644
--- a/java/res/values-sw768dp-land/dimens.xml
+++ b/java/res/values-sw768dp-land/dimens.xml
@@ -53,6 +53,8 @@
     <fraction name="key_hint_label_ratio">28%</fraction>
     <fraction name="key_uppercase_letter_ratio">24%</fraction>
     <fraction name="spacebar_text_ratio">24.00%</fraction>
+    <fraction name="key_letter_ratio_5rows">53%</fraction>
+    <fraction name="key_uppercase_letter_ratio_5rows">30%</fraction>
     <dimen name="key_preview_height">107.1dp</dimen>
 
     <dimen name="key_preview_offset_ics">8.0dp</dimen>
diff --git a/java/res/values-sw768dp/dimens.xml b/java/res/values-sw768dp/dimens.xml
index ce33b73..0fd9ced 100644
--- a/java/res/values-sw768dp/dimens.xml
+++ b/java/res/values-sw768dp/dimens.xml
@@ -64,6 +64,8 @@
     <fraction name="key_uppercase_letter_ratio">26%</fraction>
     <fraction name="key_preview_text_ratio">50%</fraction>
     <fraction name="spacebar_text_ratio">29.03%</fraction>
+    <fraction name="key_letter_ratio_5rows">51%</fraction>
+    <fraction name="key_uppercase_letter_ratio_5rows">33%</fraction>
     <dimen name="key_preview_height">94.5dp</dimen>
     <dimen name="key_preview_offset">16.0dp</dimen>
 
diff --git a/java/res/values/dimens.xml b/java/res/values/dimens.xml
index 4fd942b..e0fcd5e 100644
--- a/java/res/values/dimens.xml
+++ b/java/res/values/dimens.xml
@@ -65,6 +65,8 @@
     <fraction name="key_uppercase_letter_ratio">35%</fraction>
     <fraction name="key_preview_text_ratio">82%</fraction>
     <fraction name="spacebar_text_ratio">33.735%</fraction>
+    <fraction name="key_letter_ratio_5rows">64%</fraction>
+    <fraction name="key_uppercase_letter_ratio_5rows">41%</fraction>
     <dimen name="key_preview_height">80dp</dimen>
     <dimen name="key_preview_offset">-8.0dp</dimen>
 
diff --git a/java/res/xml-sw600dp-land/kbd_thai.xml b/java/res/xml-sw600dp-land/kbd_thai.xml
index 3143061..a7763f2 100644
--- a/java/res/xml-sw600dp-land/kbd_thai.xml
+++ b/java/res/xml-sw600dp-land/kbd_thai.xml
@@ -23,6 +23,8 @@
     latin:rowHeight="20%p"
     latin:verticalGap="3.20%p"
     latin:keyTypeface="normal"
+    latin:keyLetterSize="@fraction/key_letter_ratio_5rows"
+    latin:keyShiftedLetterHintRatio="@fraction/key_uppercase_letter_ratio_5rows"
     latin:touchPositionCorrectionData="@null"
 >
     <include
diff --git a/java/res/xml-sw600dp/kbd_thai.xml b/java/res/xml-sw600dp/kbd_thai.xml
index 3143061..a7763f2 100644
--- a/java/res/xml-sw600dp/kbd_thai.xml
+++ b/java/res/xml-sw600dp/kbd_thai.xml
@@ -23,6 +23,8 @@
     latin:rowHeight="20%p"
     latin:verticalGap="3.20%p"
     latin:keyTypeface="normal"
+    latin:keyLetterSize="@fraction/key_letter_ratio_5rows"
+    latin:keyShiftedLetterHintRatio="@fraction/key_uppercase_letter_ratio_5rows"
     latin:touchPositionCorrectionData="@null"
 >
     <include
diff --git a/java/res/xml-sw768dp-land/kbd_thai.xml b/java/res/xml-sw768dp-land/kbd_thai.xml
index b7633df..0f8516f 100644
--- a/java/res/xml-sw768dp-land/kbd_thai.xml
+++ b/java/res/xml-sw768dp-land/kbd_thai.xml
@@ -23,6 +23,8 @@
     latin:rowHeight="20%p"
     latin:verticalGap="2.65%p"
     latin:keyTypeface="normal"
+    latin:keyLetterSize="@fraction/key_letter_ratio_5rows"
+    latin:keyShiftedLetterHintRatio="@fraction/key_uppercase_letter_ratio_5rows"
     latin:touchPositionCorrectionData="@null"
 >
     <include
diff --git a/java/res/xml-sw768dp/kbd_thai.xml b/java/res/xml-sw768dp/kbd_thai.xml
index 2be6a25..7e44514 100644
--- a/java/res/xml-sw768dp/kbd_thai.xml
+++ b/java/res/xml-sw768dp/kbd_thai.xml
@@ -23,6 +23,8 @@
     latin:rowHeight="20%p"
     latin:verticalGap="2.95%p"
     latin:keyTypeface="normal"
+    latin:keyLetterSize="@fraction/key_letter_ratio_5rows"
+    latin:keyShiftedLetterHintRatio="@fraction/key_uppercase_letter_ratio_5rows"
     latin:touchPositionCorrectionData="@null"
 >
     <include