How do I change the color of a selected item on a ListView?

I'm creating a ListView that has some simple items inside a ViewCell.

When I select one of the items it becomes orange. When I click and hold (to open the context actions) it becomes white...

<ListView ItemsSource="{Binding Items}" HasUnevenRows="True">
    <ListView.ItemTemplate>
        <DataTemplate>
            <ViewCell>
                <ViewCell.ContextActions>
                    <MenuItem Text="Delete" />
                </ViewCell.ContextActions>
                <StackLayout Orientation="Horizontal" Padding="20">
                    <StackLayout HorizontalOptions="StartAndExpand">
                        <Label Text="{Binding Name}" FontSize="Large" FontAttributes="Bold" />
                        <Label Text="{Binding Description}" />
                    </StackLayout>
                </StackLayout>
            </ViewCell>
        </DataTemplate>
    </ListView.ItemTemplate>
</ListView>

How can I customize these colors?

Question on SO: http://stackoverflow.com/q/32490004/340760