IndicadoresPage.xaml from the project https://github.com/juucustodio/CarouselView-Xamarin.Forms

IndicadoresPage.xaml

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:local="clr-namespace:DemoCarouselView"
             xmlns:forms="clr-namespace:Xamarin.Forms;assembly=Xamarin.Forms.CarouselView"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="DemoCarouselView.IndicadoresPage">

    <StackLayout>
        <forms:CarouselView x:Name="ImageCarouselView" Position="{Binding Position, Mode=TwoWay}" 
                            ItemsSource="{Binding ListaImagens}" >
            <forms:CarouselView.ItemTemplate>
                <DataTemplate>
                    <Image Source="{Binding .}"/>
                </DataTemplate>
            </forms:CarouselView.ItemTemplate>
        </forms:CarouselView>
        <local:IndicadoresCarousel x:Name="Indicadores"  IndicatorHeight="16" IndicatorWidth="16" 
                          UnselectedIndicator="naoSelecionado.png" SelectedIndicator="selecionado.png" 
                          Position="{Binding Position}" ItemsSource="{Binding ListaImagens}" />

    </StackLayout>
</ContentPage>