Hi Jonas,
Query:” Is it possible to customize the DrawerHeaderView height?”
Yes, we can customize DrawerHeaderView height and please refer to the below code snippet for your reference.
<syncfusion:SfNavigationDrawer.DrawerHeaderView>
<Grid Background="#FF5D63EE" Height="150">
<Image Source="/Assets/NavigationDrawer/User.png" x:Name="image" VerticalAlignment="Center" HorizontalAlignment="Center" Margin="0 0 0 5" />
<TextBlock x:Name="name" HorizontalAlignment="Center" Padding="0 5 0 5" Foreground="White" VerticalAlignment="Bottom"/>
</Grid>
</syncfusion:SfNavigationDrawer.DrawerHeaderView>
Please let us know whether given solution solves your quires.
Regards,
Ashwin k.