diff --git a/res/layout/color_picker_item.xml b/res/layout/color_picker_item.xml
index 80a18f3..5599eb4 100644
--- a/res/layout/color_picker_item.xml
+++ b/res/layout/color_picker_item.xml
@@ -16,9 +16,13 @@
 -->
 
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="96dp"
+    android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:orientation="vertical" >
+    android:gravity="center"
+    android:orientation="vertical"
+    android:paddingLeft="4dp"
+    android:paddingRight="4dp"
+    android:paddingTop="16dp" >
 
     <ImageView
         android:id="@+id/color_swatch"
@@ -28,7 +32,7 @@
 
     <TextView
         android:id="@+id/summary"
-        android:layout_width="match_parent"
+        android:layout_width="96dp"
         android:layout_height="wrap_content"
         android:gravity="center" />
 
diff --git a/res/layout/grid_picker_dialog.xml b/res/layout/grid_picker_dialog.xml
index 023f12e..a52f079 100644
--- a/res/layout/grid_picker_dialog.xml
+++ b/res/layout/grid_picker_dialog.xml
@@ -15,12 +15,24 @@
      limitations under the License.
 -->
 
-<GridView xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@android:id/list"
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
-    android:layout_height="300dp"
-    android:columnWidth="112dp"
-    android:numColumns="auto_fit"
-    android:paddingTop="16dp"
-    android:stretchMode="spacingWidthUniform"
-    android:verticalSpacing="16dp" />
+    android:layout_height="match_parent" >
+
+    <GridView
+        android:id="@android:id/list"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:columnWidth="112dp"
+        android:numColumns="auto_fit"
+        android:scrollbarStyle="insideOverlay"
+        android:stretchMode="spacingWidthUniform" />
+
+    <!-- HACK: Setting minHeight has no effect within a dialog layout,
+         so this view keeps the minimum height above 300dp. -->
+    <View
+        android:layout_width="0dp"
+        android:layout_height="300dp"
+        android:visibility="invisible" />
+
+</FrameLayout>
diff --git a/res/layout/preset_picker_item.xml b/res/layout/preset_picker_item.xml
index 9d799ef..0cafd34 100644
--- a/res/layout/preset_picker_item.xml
+++ b/res/layout/preset_picker_item.xml
@@ -16,9 +16,13 @@
 -->
 
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="96dp"
+    android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:orientation="vertical" >
+    android:gravity="center"
+    android:orientation="vertical"
+    android:paddingLeft="4dp"
+    android:paddingRight="4dp"
+    android:paddingTop="16dp" >
 
     <FrameLayout
         android:layout_width="96dp"
@@ -35,7 +39,7 @@
 
     <TextView
         android:id="@+id/summary"
-        android:layout_width="match_parent"
+        android:layout_width="96dp"
         android:layout_height="wrap_content"
         android:gravity="center" />