NavigationPage.TitleView Height - Android vs iOS

Hello,

On android, titleView does not seem to have a fixed size. On iOS it does.

Here is a sample :

    <NavigationPage.TitleView>

        <Image 
            Source="ic_logo.png"
            Aspect="AspectFit"></Image>

    </NavigationPage.TitleView>

Result is fine on iOS :

But on Android :

Should I force the height of the image if running on Android ? At what height ?

Thanks