How To Set Custom Font For Items Loaded In Xamarin.Forms Listview?

<Grid RowSpacing="0">
    <syncfusion:SfListView x:Name="listView" BackgroundColor="AliceBlue"
                           AllowGroupExpandCollapse="True"
                           ItemSpacing="3" ItemSize="70"
                           ItemsSource="{Binding ContactsGrouped}">
        <syncfusion:SfListView.GroupHeaderTemplate>
            <DataTemplate x:Name="GroupHeaderTemplate">
                <ViewCell>
                    <ViewCell.View>
                        <Grid>
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="30" />
                                <ColumnDefinition Width="*" />
                            </Grid.ColumnDefinitions>
                            <Image x:Name="NormalImage" Grid.Column="0" HorizontalOptions="Center"
                                   Source="{Binding IsExpand, Converter={StaticResource BoolToImageConverter}}"
                                   VerticalOptions="Center"/>
                            <Label Text="{Binding Key}" Grid.Column="1"
                                   FontFamily="{StaticResource Pacifico-Font}" />
                        </Grid>
                    </ViewCell.View>
                </ViewCell>
            </DataTemplate>
        </syncfusion:SfListView.GroupHeaderTemplate>

        <syncfusion:SfListView.ItemTemplate>
            <DataTemplate>
                <ViewCell>
                    <ViewCell.View>
                        <Grid x:Name="grid" RowSpacing="1">
                            <Grid.RowDefinitions>
                                <RowDefinition Height="*" />
                                <RowDefinition Height="1" />
                            </Grid.RowDefinitions>
                            <Grid RowSpacing="1">
                            . . .
                            . . .

                                <Grid>
                                    <Image Source="{Binding ContactImage}"
                                           VerticalOptions="Center                                
                                </Grid>
                            </Grid>
                            <StackLayout Grid.Row="1" BackgroundColor="Gray" HeightRequest="1"/>
                        </Grid>
                    </ViewCell.View>
                </ViewCell>
            </DataTemplate>
        </syncfusion:SfListView.ItemTemplate>
    </syncfusion:SfListView>
</Grid>