I am attempting to create a frame which has a linear gradient going from yellow to green. I would like the top-right corner to be yellow, and the middle of the bottom to be green.

I am using the following XAML:

 <Frame Padding="0" BorderColor="Transparent" HeightRequest="200" Margin="10">
     <Frame.Background>
         <LinearGradientBrush StartPoint="1,0" EndPoint="0.5,1">
             <GradientStop Color="Yellow"
                       Offset="0.0" />
             <GradientStop Color="Green"
                       Offset="1.0" />
         </LinearGradientBrush>
     </Frame.Background>

 </Frame>

Here is what I see when I run the application:

My expectation is that I would see something similar to this (red arrow added to help visualize the start and end of the gradient):

I notice that if I change the EndPoint X to 0, it works as expected:

<LinearGradientBrush StartPoint="1,0" EndPoint="0,1">

I have tried values of 0.5 and .5 but neither seem to work.