shadow demo fix

Author: ButchersBoy

MainDemo.Wpf/MenusAndToolBars.xaml

@@ -34,6 +34,10 @@
                     <MenuItem Header="Enlightenment?" IsCheckable="True" />
                     <MenuItem Header="Disappointment" IsCheckable="True" />
                 </MenuItem>
+                <MenuItem Header="Look Deeper" InputGestureText="Ctrl+D">
+                    <MenuItem Header="Plain" />
+                    <MenuItem Header="Ice Cream" />
+                </MenuItem>
             </MenuItem>
             <MenuItem Header="_Edit">
                 <MenuItem Header="_Cut" Command="Cut">

MainDemo.Wpf/Shadows.xaml

@@ -39,6 +39,7 @@
                     >2</Button>
             <Button Style="{DynamicResource MaterialDesignFloatingActionButton}"
                     Margin="16 0 0 0"                    
+                    wpf:ShadowAssist.ShadowDepth="Depth3"
                     >3</Button>
             <Button Style="{DynamicResource MaterialDesignFloatingActionButton}"
                     Margin="16 0 0 0"