diff --git a/xwords4/android/XWords4/res/layout/board.xml b/xwords4/android/XWords4/res/layout/board.xml
index 497b97b33..8516e93f2 100644
--- a/xwords4/android/XWords4/res/layout/board.xml
+++ b/xwords4/android/XWords4/res/layout/board.xml
@@ -18,13 +18,13 @@
      android:longClickable="true"
      android:drawSelectorOnTop="false"
      android:layout_gravity="center_vertical|center_horizontal"
+     android:background="@android:color/transparent"
      />
 
   <LinearLayout android:id="@+id/exchange_buttons"
                 android:orientation="horizontal"
                 android:layout_width="fill_parent"
                 android:layout_height="wrap_content"
-                android:background="#FF000000"
                 >
     <Button android:id="@+id/exchange_commit"
             android:text="@string/button_trade_commit" 
diff --git a/xwords4/android/XWords4/src/org/eehouse/android/xw4/BoardCanvas.java b/xwords4/android/XWords4/src/org/eehouse/android/xw4/BoardCanvas.java
index ba89a4ddc..12a6bec63 100644
--- a/xwords4/android/XWords4/src/org/eehouse/android/xw4/BoardCanvas.java
+++ b/xwords4/android/XWords4/src/org/eehouse/android/xw4/BoardCanvas.java
@@ -178,7 +178,6 @@ public class BoardCanvas extends Canvas implements DrawCtx {
         }
 
         m_boundsScratch.set( 0, 0, bitmap.getWidth(), bitmap.getHeight() );
-        fillRect( m_boundsScratch, WHITE );
     }
 
     public void setJNIThread( JNIThread jniThread )