Image doesn't align well in Button

Hi,

Does anyone know how to align the image in a button?

    <StackLayout BackgroundColor="{l:GlobalResource DarkBackground}" VerticalOptions="Center" Orientation="Horizontal" Padding="5,5,5,5">

            <Button StyleId="load" Text="Load" Font="Large" 
                MinimumWidthRequest="40" MinimumHeightRequest="30"
                BackgroundColor="{l:GlobalResource DefaultButtonBackground}" 
                TextColor="{l:GlobalResource DefaultButtonText}" 
                Clicked="LoadClicked" CommandParameter="{Binding Location}" />
            <Label TextColor="{l:GlobalResource LightestText}"
                HorizontalOptions="FillAndExpand" VerticalOptions="Center" 
                Text="{Binding Location.Name}"/>
            <Button Clicked="LocationSelected" CommandParameter="{Binding Location}"
                BackgroundColor="Red" 
                MinimumWidthRequest="24" WidthRequest="24" 
                HorizontalOptions="Center" VerticalOptions="Center" 
                Image="disclosure.png" />

    </StackLayout>

It looks like for android the image is aligned to the right and for iOS the image is aligned to the left

thanks!