diff --git a/Controls/Tile.xaml b/Controls/Tile.xaml
index 7a45baa..3344d79 100644
--- a/Controls/Tile.xaml
+++ b/Controls/Tile.xaml
@@ -9,7 +9,7 @@
     d:DesignHeight="160" d:DesignWidth="160">
 
     <Grid x:Name="LayoutRoot" Width="160" Height="160" Background="{StaticResource PhoneAccentBrush}">
-        <Image x:Name="TileImage" Width="100" Height="100"/>
+        <Image x:Name="TileImage" Width="75" Height="75"/>
         <TextBlock x:Name="TileTitle" Text="未设定"
                    Foreground="White" FontSize="20"
                    HorizontalAlignment="Left" VerticalAlignment="Bottom"
diff --git a/Images/Tiles/board.png b/Images/Tiles/board.png
index 95ed56c..c81d6bb 100644
Binary files a/Images/Tiles/board.png and b/Images/Tiles/board.png differ
diff --git a/Images/Tiles/cup.png b/Images/Tiles/cup.png
index 2abe92a..2addbf3 100644
Binary files a/Images/Tiles/cup.png and b/Images/Tiles/cup.png differ
diff --git a/Images/Tiles/folder.png b/Images/Tiles/folder.png
index 85bb585..e3be5c5 100644
Binary files a/Images/Tiles/folder.png and b/Images/Tiles/folder.png differ
diff --git a/Images/Tiles/list.png b/Images/Tiles/list.png
index e64866e..306d66d 100644
Binary files a/Images/Tiles/list.png and b/Images/Tiles/list.png differ
diff --git a/Images/Tiles/love.png b/Images/Tiles/love.png
index d5c625d..1b5fe92 100644
Binary files a/Images/Tiles/love.png and b/Images/Tiles/love.png differ
diff --git a/Images/Tiles/mailbox.png b/Images/Tiles/mailbox.png
index 5c0b0ec..0ccf847 100644
Binary files a/Images/Tiles/mailbox.png and b/Images/Tiles/mailbox.png differ
diff --git a/Images/Tiles/pen.png b/Images/Tiles/pen.png
index ba6400a..24ece76 100644
Binary files a/Images/Tiles/pen.png and b/Images/Tiles/pen.png differ