Fix an issue with a red color on the Entry control

Author: AgustinBonilla

example/ExampleMaterialDesignControls/App.xaml

@@ -184,7 +184,8 @@
         <!-- MaterialEntry -->
         <Style TargetType="material:MaterialEntry" BasedOn="{StaticResource BaseMaterialStyle}">
             <Setter Property="BackgroundColor" Value="{StaticResource BackgroundColor}" />
-            <!--<Setter Property="ClearIcon" Value="cancel.png" />-->
+            <Setter Property="ClearIcon" Value="cancel.png" />
+            <Setter Property="ClearIconIsVisible" Value="True" />
             <Setter Property="ShowPasswordIcon" Value="showPassword.png" />
         </Style>
 

src/MaterialDesignControls/Controls/MaterialEntry.xaml

@@ -13,7 +13,7 @@
                     <custom:CustomEntry x:Name="txtEntry" VerticalOptions="Center" HorizontalOptions="FillAndExpand" />
                     <custom:CustomImageButton x:Name="imgTrailingIcon" IsVisible="false" HorizontalOptions="End" />
                     <custom:CustomImageButton x:Name="imgShowPasswordIcon" IsVisible="false" HorizontalOptions="End" />
-                    <custom:CustomImageButton x:Name="imgClearIcon" IsVisible="false" HorizontalOptions="End" BackgroundColor="Red" />
+                    <custom:CustomImageButton x:Name="imgClearIcon" IsVisible="false" HorizontalOptions="End" />
                 </StackLayout>
             </Frame>
             <BoxView x:Name="bxvLine" HeightRequest="1" />