diff --git a/java/res/values/attrs.xml b/java/res/values/attrs.xml
index cced45d..de732fb 100644
--- a/java/res/values/attrs.xml
+++ b/java/res/values/attrs.xml
@@ -187,13 +187,13 @@
         <attr name="colorTypedWord" format="color" />
         <attr name="colorAutoCorrect" format="color" />
         <attr name="colorSuggested" format="color" />
-        <attr name="alphaValidTypedWord" format="integer" />
-        <attr name="alphaTypedWord" format="integer" />
-        <attr name="alphaAutoCorrect" format="integer" />
-        <attr name="alphaSuggested" format="integer" />
-        <attr name="alphaObsoleted" format="integer" />
+        <attr name="alphaValidTypedWord" format="fraction" />
+        <attr name="alphaTypedWord" format="fraction" />
+        <attr name="alphaAutoCorrect" format="fraction" />
+        <attr name="alphaSuggested" format="fraction" />
+        <attr name="alphaObsoleted" format="fraction" />
         <attr name="suggestionsCountInStrip" format="integer" />
-        <attr name="centerSuggestionPercentile" format="integer" />
+        <attr name="centerSuggestionPercentile" format="fraction" />
         <attr name="maxMoreSuggestionsRow" format="integer" />
         <attr name="minMoreSuggestionsWidth" format="float" />
     </declare-styleable>
diff --git a/java/res/values/dimens.xml b/java/res/values/dimens.xml
index c59bad3..565059b 100644
--- a/java/res/values/dimens.xml
+++ b/java/res/values/dimens.xml
@@ -92,7 +92,7 @@
     <dimen name="suggestion_text_size">18dp</dimen>
     <dimen name="more_suggestions_hint_text_size">27dp</dimen>
     <integer name="suggestions_count_in_strip">3</integer>
-    <integer name="center_suggestion_percentile">36</integer>
+    <fraction name="center_suggestion_percentile">36%</fraction>
 
     <!-- Gesture preview parameters -->
     <dimen name="gesture_preview_trail_width">2.5dp</dimen>
diff --git a/java/res/values/styles.xml b/java/res/values/styles.xml
index e5e7fed..ccf378a 100644
--- a/java/res/values/styles.xml
+++ b/java/res/values/styles.xml
@@ -138,9 +138,9 @@
         <item name="colorTypedWord">@android:color/white</item>
         <item name="colorAutoCorrect">#FFFCAE00</item>
         <item name="colorSuggested">#FFFCAE00</item>
-        <item name="alphaObsoleted">50</item>
+        <item name="alphaObsoleted">50%</item>
         <item name="suggestionsCountInStrip">@integer/suggestions_count_in_strip</item>
-        <item name="centerSuggestionPercentile">@integer/center_suggestion_percentile</item>
+        <item name="centerSuggestionPercentile">@fraction/center_suggestion_percentile</item>
         <item name="maxMoreSuggestionsRow">@integer/max_more_suggestions_row</item>
         <item name="minMoreSuggestionsWidth">@fraction/min_more_suggestions_width</item>
     </style>
@@ -373,12 +373,12 @@
         <item name="colorTypedWord">@android:color/holo_blue_light</item>
         <item name="colorAutoCorrect">@android:color/holo_blue_light</item>
         <item name="colorSuggested">@android:color/holo_blue_light</item>
-        <item name="alphaValidTypedWord">85</item>
-        <item name="alphaTypedWord">85</item>
-        <item name="alphaSuggested">70</item>
-        <item name="alphaObsoleted">70</item>
+        <item name="alphaValidTypedWord">85%</item>
+        <item name="alphaTypedWord">85%</item>
+        <item name="alphaSuggested">70%</item>
+        <item name="alphaObsoleted">70%</item>
         <item name="suggestionsCountInStrip">@integer/suggestions_count_in_strip</item>
-        <item name="centerSuggestionPercentile">@integer/center_suggestion_percentile</item>
+        <item name="centerSuggestionPercentile">@fraction/center_suggestion_percentile</item>
         <item name="maxMoreSuggestionsRow">@integer/max_more_suggestions_row</item>
         <item name="minMoreSuggestionsWidth">@fraction/min_more_suggestions_width</item>
     </style>