ResourceDictionaryWithSource.xaml

<?xml version="1.0" encoding="UTF-8" ?>
<ContentPage 
    xmlns="http://xamarin.com/schemas/2014/forms"
    xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
    x:Class="Xamarin.Forms.Xaml.UnitTests.ResourceDictionaryWithSource">
    <ContentPage.Resources>
        <ResourceDictionary Source="./SharedResourceDictionary.xaml">
            <ResourceDictionary Source="./SharedResourceDictionary.xaml" x:Key="relURI"/>
            <ResourceDictionary Source="/SharedResourceDictionary.xaml" x:Key="absURI"/>
            <ResourceDictionary Source="SharedResourceDictionary.xaml" x:Key="shortURI"/>
            <ResourceDictionary Source="./AppResources/Colors.xaml" x:Key="Colors" />
            <ResourceDictionary Source="./AppResources/CompiledColors.xaml" x:Key="CompiledColors" />
        </ResourceDictionary>
    </ContentPage.Resources>
    <Label x:Name="label" Style="{StaticResource sharedfoo}"/>
</ContentPage>