如何设置不同的colorPrimary，colorAccent...对于每个Xamarin.Forms页面？C#

<Application.Resources>
    <ResourceDictionary>
        <Color x:Key="Page1ColorPrimary">#FF0000</Color>
        <Color x:Key="Page1ColorAccent">#00FF00</Color>
        <Color x:Key="Page2ColorPrimary">#0000FF</Color>
        <Color x:Key="Page2ColorAccent">#FFFF00</Color>
    </ResourceDictionary>
</Application.Resources>

<ContentPage ...
             xmlns:local="clr-namespace:YourNamespace"
             BackgroundColor="{StaticResource Page1ColorPrimary}">
    <StackLayout>
        <!-- 页面内容 -->
    </StackLayout>
</ContentPage>