diff --git a/java/res/xml/kbd_pcqwerty.xml b/java/res/xml/kbd_pcqwerty.xml
index a6ab2ba..777c71a 100644
--- a/java/res/xml/kbd_pcqwerty.xml
+++ b/java/res/xml/kbd_pcqwerty.xml
@@ -21,9 +21,9 @@
 <Keyboard
     xmlns:latin="http://schemas.android.com/apk/res/com.android.inputmethod.latin"
     latin:rowHeight="20%p"
-    latin:verticalGap="@fraction/key_bottom_gap_5rows"
-    latin:keyLetterSize="@fraction/key_letter_ratio_5rows"
-    latin:keyShiftedLetterHintRatio="@fraction/key_uppercase_letter_ratio_5rows"
+    latin:verticalGap="@fraction/key_bottom_gap_5row"
+    latin:keyLetterSize="@fraction/key_letter_ratio_5row"
+    latin:keyShiftedLetterHintRatio="@fraction/key_uppercase_letter_ratio_5row"
     latin:touchPositionCorrectionData="@null"
 >
     <include
diff --git a/java/res/xml/kbd_pcqwerty_symbols.xml b/java/res/xml/kbd_pcqwerty_symbols.xml
index e862748..a2297f7 100644
--- a/java/res/xml/kbd_pcqwerty_symbols.xml
+++ b/java/res/xml/kbd_pcqwerty_symbols.xml
@@ -21,9 +21,9 @@
 <Keyboard
     xmlns:latin="http://schemas.android.com/apk/res/com.android.inputmethod.latin"
     latin:rowHeight="20%p"
-    latin:verticalGap="@fraction/key_bottom_gap_5rows"
-    latin:keyLetterSize="@fraction/key_letter_ratio_5rows"
-    latin:keyShiftedLetterHintRatio="@fraction/key_uppercase_letter_ratio_5rows"
+    latin:verticalGap="@fraction/key_bottom_gap_5row"
+    latin:keyLetterSize="@fraction/key_letter_ratio_5row"
+    latin:keyShiftedLetterHintRatio="@fraction/key_uppercase_letter_ratio_5row"
     latin:touchPositionCorrectionData="@null"
 >
     <include
diff --git a/java/res/xml/kbd_thai.xml b/java/res/xml/kbd_thai.xml
index b015d70..058ca16 100644
--- a/java/res/xml/kbd_thai.xml
+++ b/java/res/xml/kbd_thai.xml
@@ -20,7 +20,6 @@
 
 <Keyboard
     xmlns:latin="http://schemas.android.com/apk/res/com.android.inputmethod.latin"
-    latin:keyTypeface="normal"
 >
     <include
         latin:keyboardLayout="@xml/rows_thai" />
diff --git a/java/res/xml/rowkeys_thai1.xml b/java/res/xml/rowkeys_thai1.xml
index 4b49da1..e175bef 100644
--- a/java/res/xml/rowkeys_thai1.xml
+++ b/java/res/xml/rowkeys_thai1.xml
@@ -27,28 +27,36 @@
         >
             <!-- U+0E0E: "ฎ" THAI CHARACTER DO CHADA -->
             <Key
-                latin:keyLabel="&#x0E0E;" />
+                latin:keyLabel="&#x0E0E;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E11: "ฑ" THAI CHARACTER THO NANGMONTHO -->
             <Key
-                latin:keyLabel="&#x0E11;" />
+                latin:keyLabel="&#x0E11;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E18: "ธ" THAI CHARACTER THO THONG -->
             <Key
-                latin:keyLabel="&#x0E18;" />
+                latin:keyLabel="&#x0E18;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E13: "ณ" THAI CHARACTER NO NEN -->
             <Key
-                latin:keyLabel="&#x0E13;" />
+                latin:keyLabel="&#x0E13;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E0D: "ญ" THAI CHARACTER YO YING -->
             <Key
-                latin:keyLabel="&#x0E0D;" />
+                latin:keyLabel="&#x0E0D;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E10: "ฐ" THAI CHARACTER THO THAN -->
             <Key
-                latin:keyLabel="&#x0E10;" />
+                latin:keyLabel="&#x0E10;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E03: "ฃ" THAI CHARACTER KHO KHUAT -->
             <Key
-                latin:keyLabel="&#x0E03;" />
+                latin:keyLabel="&#x0E03;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E05: "ฅ" THAI CHARACTER KHO KHON -->
             <Key
-                latin:keyLabel="&#x0E05;" />
+                latin:keyLabel="&#x0E05;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E51: "๑" THAI DIGIT ONE
                  U+0E52: "๒" THAI DIGIT TWO
                  U+0E53: "๓" THAI DIGIT THREE
@@ -56,7 +64,8 @@
                  U+0E55: "๕" THAI DIGIT FIVE -->
             <Key
                 latin:keyLabel="&#x0E51;"
-                latin:moreKeys="!fixedColumnOrder!4,&#x0E52;,&#x0E53;,&#x0E54;,&#x0E55;" />
+                latin:moreKeys="!fixedColumnOrder!4,&#x0E52;,&#x0E53;,&#x0E54;,&#x0E55;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E56: "๖" THAI DIGIT SIX
                  U+0E57: "๗" THAI DIGIT SEVEN
                  U+0E58: "๘" THAI DIGIT EIGHT
@@ -64,61 +73,72 @@
                  U+0E50: "๐" THAI DIGIT ZERO -->
             <Key
                 latin:keyLabel="&#x0E56;"
-                latin:moreKeys="!fixedColumnOrder!4,&#x0E57;,&#x0E58;,&#x0E59;,&#x0E50;" />
+                latin:moreKeys="!fixedColumnOrder!4,&#x0E57;,&#x0E58;,&#x0E59;,&#x0E50;"
+                latin:keyLabelFlags="fontNormal" />
         </case>
         <default>
             <!-- U+0E20: "ภ" THAI CHARACTER PHO SAMPHAO -->
             <Key
                 latin:keyLabel="&#x0E20;"
                 latin:keyHintLabel="1"
-                latin:additionalMoreKeys="1,&#x0E51;" />
+                latin:additionalMoreKeys="1,&#x0E51;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E16: "ถ" THAI CHARACTER THO THUNG -->
             <Key
                 latin:keyLabel="&#x0E16;"
                 latin:keyHintLabel="2"
-                latin:additionalMoreKeys="2,&#x0E52;" />
+                latin:additionalMoreKeys="2,&#x0E52;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E04: "ค" THAI CHARACTER KHO KHWAI -->
             <Key
                 latin:keyLabel="&#x0E04;"
                 latin:keyHintLabel="3"
-                latin:additionalMoreKeys="3,&#x0E53;" />
+                latin:additionalMoreKeys="3,&#x0E53;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E15: "ต" THAI CHARACTER TO TAO -->
             <Key
                 latin:keyLabel="&#x0E15;"
                 latin:keyHintLabel="4"
-                latin:additionalMoreKeys="4,&#x0E54;" />
+                latin:additionalMoreKeys="4,&#x0E54;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E08: "จ" THAI CHARACTER CHO CHAN -->
             <Key
                 latin:keyLabel="&#x0E08;"
                 latin:keyHintLabel="5"
-                latin:additionalMoreKeys="5,&#x0E55;" />
+                latin:additionalMoreKeys="5,&#x0E55;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E02: "ข" THAI CHARACTER KHO KHAI -->
             <Key
                 latin:keyLabel="&#x0E02;"
                 latin:keyHintLabel="6"
-                latin:additionalMoreKeys="6,&#x0E56;" />
+                latin:additionalMoreKeys="6,&#x0E56;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E0A: "ช" THAI CHARACTER CHO CHANG -->
             <Key
                 latin:keyLabel="&#x0E0A;"
                 latin:keyHintLabel="7"
-                latin:additionalMoreKeys="7,&#x0E57;" />
+                latin:additionalMoreKeys="7,&#x0E57;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E23: "ร" THAI CHARACTER RO RUA
                  U+0E25: "ล" THAI CHARACTER LO LING -->
             <Key
                 latin:keyLabel="&#x0E23;"
                 latin:moreKeys="&#x0E25;"
                 latin:keyHintLabel="8"
-                latin:additionalMoreKeys="8,&#x0E58;" />
+                latin:additionalMoreKeys="8,&#x0E58;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E19: "น" THAI CHARACTER NO NU -->
             <Key
                 latin:keyLabel="&#x0E19;"
                 latin:keyHintLabel="9"
-                latin:additionalMoreKeys="9,&#x0E59;" />
+                latin:additionalMoreKeys="9,&#x0E59;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E22: "ย" THAI CHARACTER YO YAK -->
             <Key
                 latin:keyLabel="&#x0E22;"
                 latin:keyHintLabel="0"
-                latin:additionalMoreKeys="0,&#x0E50;" />
+                latin:additionalMoreKeys="0,&#x0E50;"
+                latin:keyLabelFlags="fontNormal" />
         </default>
     </switch>
 </merge>
diff --git a/java/res/xml/rowkeys_thai2.xml b/java/res/xml/rowkeys_thai2.xml
index 80e3563..f5fd405 100644
--- a/java/res/xml/rowkeys_thai2.xml
+++ b/java/res/xml/rowkeys_thai2.xml
@@ -27,60 +27,76 @@
         >
             <!-- U+0E24: "ฤ" THAI CHARACTER RU -->
             <Key
-                latin:keyLabel="&#x0E24;" />
+                latin:keyLabel="&#x0E24;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E06: "ฆ" THAI CHARACTER KHO RAKHANG -->
             <Key
-                latin:keyLabel="&#x0E06;" />
+                latin:keyLabel="&#x0E06;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E0F: "ฏ" THAI CHARACTER TO PATAK -->
             <Key
-                latin:keyLabel="&#x0E0F;" />
+                latin:keyLabel="&#x0E0F;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E0C: "ฌ" THAI CHARACTER CHO CHOE -->
             <Key
-                latin:keyLabel="&#x0E0C;" />
+                latin:keyLabel="&#x0E0C;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E29: "ษ" THAI CHARACTER SO RUSI -->
             <Key
-                latin:keyLabel="&#x0E29;" />
+                latin:keyLabel="&#x0E29;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E28: "ศ" THAI CHARACTER SO SALA -->
             <Key
-                latin:keyLabel="&#x0E28;" />
+                latin:keyLabel="&#x0E28;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E0B: "ซ" THAI CHARACTER SO SO -->
             <Key
-                latin:keyLabel="&#x0E0B;" />
+                latin:keyLabel="&#x0E0B;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E3F: "฿" THAI CURRENCY SYMBOL BAHT
                  U+0E45: "ๅ" THAI CHARACTER LAKKHANGYAO -->
             <Key
                 latin:keyLabel="&#x0E3F;"
-                latin:moreKeys="&#x0E45;" />
+                latin:moreKeys="&#x0E45;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E46: "ๆ" THAI CHARACTER MAIYAMOK
                  U+0E2F: "ฯ" THAI CHARACTER PAIYANNOI -->
             <Key
                 latin:keyLabel="&#x0E46;"
-                latin:moreKeys="&#x0E2F;" />
+                latin:moreKeys="&#x0E2F;"
+                latin:keyLabelFlags="fontNormal" />
         </case>
         <default>
             <!-- U+0E1F: "ฟ" THAI CHARACTER FO FAN
                  U+0E1E: "พ" THAI CHARACTER PHO PHAN -->
             <Key
                 latin:keyLabel="&#x0E1F;"
-                latin:moreKeys="&#x0E1E;" />
+                latin:moreKeys="&#x0E1E;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E2B: "ห" THAI CHARACTER HO HIP -->
             <Key
-                latin:keyLabel="&#x0E2B;" />
+                latin:keyLabel="&#x0E2B;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E01: "ก" THAI CHARACTER KO KAI -->
             <Key
-                latin:keyLabel="&#x0E01;" />
+                latin:keyLabel="&#x0E01;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E14: "ด" THAI CHARACTER DO DEK -->
             <Key
-                latin:keyLabel="&#x0E14;" />
+                latin:keyLabel="&#x0E14;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E2A: "ส" THAI CHARACTER SO SUA -->
             <Key
-                latin:keyLabel="&#x0E2A;" />
+                latin:keyLabel="&#x0E2A;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E27: "ว" THAI CHARACTER WO WAEN -->
             <Key
-                latin:keyLabel="&#x0E27;" />
+                latin:keyLabel="&#x0E27;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E07: "ง" THAI CHARACTER NGO NGU -->
             <Key
-                latin:keyLabel="&#x0E07;" />
+                latin:keyLabel="&#x0E07;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E30: "ะ" THAI CHARACTER SARA A
                  U+0E32: "า" THAI CHARACTER SARA AA
                  U+0E33: " ำ" THAI CHARACTER SARA AM
@@ -91,17 +107,23 @@
                  U+0E42: "โ" THAI CHARACTER SARA O -->
             <Key
                 latin:keyLabel="&#x0E30;"
-                latin:moreKeys="&#x0E32;,&#x0E33;,&#x0E40;,&#x0E41;,&#x0E43;,&#x0E44;,&#x0E42;" />
-            <!-- U+0E31: " ั" THAI CHARACTER MAI HAN-AKAT
+                latin:moreKeys="&#x0E32;,&#x0E33;,&#x0E40;,&#x0E41;,&#x0E43;,&#x0E44;,&#x0E42;"
+                latin:keyLabelFlags="fontNormal" />
+            <!-- U+0020: " " SPACE
+                 U+0E31: " ั" THAI CHARACTER MAI HAN-AKAT
                  U+0E34: " ิ" THAI CHARACTER SARA I
                  U+0E35: " ี" THAI CHARACTER SARA II
                  U+0E36: " ึ" THAI CHARACTER SARA UE
                  U+0E37: " ื" THAI CHARACTER SARA UEE
                  U+0E38: " ุ" THAI CHARACTER SARA U
                  U+0E39: " ู" THAI CHARACTER SARA UU -->
+            <!-- Note: The space character is needed as a preceding letter to draw some Thai
+                 composing characters correctly. -->
             <Key
-                latin:keyLabel="&#x0E31;"
-                latin:moreKeys="&#x0E34;,&#x0E35;,&#x0E36;,&#x0E37;,&#x0E38;,&#x0E39;" />
+                latin:keyLabel="&#x20;&#x0E31;"
+                latin:code="0x0E31"
+                latin:moreKeys="&#x0E34;,&#x0E35;,&#x0E36;,&#x0E37;,&#x0E38;,&#x0E39;"
+                latin:keyLabelFlags="fontNormal|followKeyLetterRatio" />
         </default>
     </switch>
 </merge>
diff --git a/java/res/xml/rowkeys_thai3.xml b/java/res/xml/rowkeys_thai3.xml
index b833807..2fcc006 100644
--- a/java/res/xml/rowkeys_thai3.xml
+++ b/java/res/xml/rowkeys_thai3.xml
@@ -27,57 +27,83 @@
         >
             <!-- U+0E09: "ฉ" THAI CHARACTER CHO CHING -->
             <Key
-                latin:keyLabel="&#x0E09;" />
+                latin:keyLabel="&#x0E09;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E2E: "ฮ" THAI CHARACTER HO NOKHUK -->
             <Key
-                latin:keyLabel="&#x0E2E;" />
+                latin:keyLabel="&#x0E2E;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E12: "ฒ" THAI CHARACTER THO PHUTHAO -->
             <Key
-                latin:keyLabel="&#x0E12;" />
+                latin:keyLabel="&#x0E12;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E2C: "ฬ" THAI CHARACTER LO CHULA -->
             <Key
-                latin:keyLabel="&#x0E2C;" />
+                latin:keyLabel="&#x0E2C;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E26: "ฦ" THAI CHARACTER LU -->
             <Key
-                latin:keyLabel="&#x0E26;" />
-            <!-- U+0E4C: " ์" THAI CHARACTER THANTHAKHAT
+                latin:keyLabel="&#x0E26;"
+                latin:keyLabelFlags="fontNormal" />
+            <!-- U+0020: " " SPACE
+                 U+0E4C: " ์" THAI CHARACTER THANTHAKHAT
                  U+0E4D: " ํ" THAI CHARACTER NIKHAHIT
                  U+0E3A: " ฺ" THAI CHARACTER PHINTHU -->
+            <!-- Note: The space character is needed as a preceding letter to draw some Thai
+                 composing characters correctly. -->
             <Key
-                latin:keyLabel="&#x0E4C;"
-                latin:moreKeys="&#x0E4D;,&#x0E3A;" />
-            <!-- U+0E47: " ็" THAI CHARACTER MAITAIKHU -->
+                latin:keyLabel="&#x20;&#x0E4C;"
+                latin:code="0x0E4C"
+                latin:moreKeys="&#x0E4D;,&#x0E3A;"
+                latin:keyLabelFlags="fontNormal|followKeyLetterRatio" />
+            <!-- U+0020: " " SPACE
+                 U+0E47: " ็" THAI CHARACTER MAITAIKHU -->
+            <!-- Note: The space character is needed as a preceding letter to draw some Thai
+                 composing characters correctly. -->
             <Key
-                latin:keyLabel="&#x0E47;" />
+                latin:keyLabel="&#x20;&#x0E47;"
+                latin:code="0x0E47"
+                latin:keyLabelFlags="fontNormal|followKeyLetterRatio" />
         </case>
         <default>
             <!-- U+0E1C: "ผ" THAI CHARACTER PHO PHUNG -->
             <Key
-                latin:keyLabel="&#x0E1C;" />
+                latin:keyLabel="&#x0E1C;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E1B: "ป" THAI CHARACTER PO PLA
                  U+0E1A: "บ" THAI CHARACTER BO BAIMAI -->
             <Key
                 latin:keyLabel="&#x0E1B;"
-                latin:moreKeys="&#x0E1A;" />
+                latin:moreKeys="&#x0E1A;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E2D: "อ" THAI CHARACTER O ANG -->
             <Key
-                latin:keyLabel="&#x0E2D;" />
+                latin:keyLabel="&#x0E2D;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E17: "ท" THAI CHARACTER THO THAHAN -->
             <Key
-                latin:keyLabel="&#x0E17;" />
+                latin:keyLabel="&#x0E17;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E21: "ม" THAI CHARACTER MO MA -->
             <Key
-                latin:keyLabel="&#x0E21;" />
+                latin:keyLabel="&#x0E21;"
+                latin:keyLabelFlags="fontNormal" />
             <!-- U+0E1D: "ฝ" THAI CHARACTER FO FA -->
             <Key
-                latin:keyLabel="&#x0E1D;" />
-            <!-- U+0E48: " ่" THAI CHARACTER MAI EK
+                latin:keyLabel="&#x0E1D;"
+                latin:keyLabelFlags="fontNormal" />
+            <!-- U+0020: " " SPACE
+                 U+0E48: " ่" THAI CHARACTER MAI EK
                  U+0E49: " ้" THAI CHARACTER MAI THO
                  U+0E4A: " ๊" THAI CHARACTER MAI TRI
                  U+0E4B: " ๋" THAI CHARACTER MAI CHATTAWA -->
+            <!-- Note: The space character is needed as a preceding letter to draw some Thai
+                 composing characters correctly. -->
             <Key
-                latin:keyLabel="&#x0E48;"
-                latin:moreKeys="&#x0E49;,&#x0E4A;,&#x0E4B;" />
+                latin:keyLabel="&#x20;&#x0E48;"
+                latin:code="0x0E48"
+                latin:moreKeys="&#x0E49;,&#x0E4A;,&#x0E4B;"
+                latin:keyLabelFlags="fontNormal|followKeyLetterRatio" />
         </default>
     </switch>
 </merge>