An animation that changes the color of a Frame

Question

 <Frame  
        x:Name="xBorder"  
        Padding="2"  
        BackgroundColor="{StaticResource ColorBorder000}"  
        CornerRadius="90"  
        HasShadow="False"  
        IsClippedToBounds="True">     
  
        <Frame  
            Padding="0"  
            CornerRadius="90"  
            HasShadow="False"  
            IsClippedToBounds="True">  
  
  
            <StackLayout />  
  
        </Frame>  
  </Frame>  

I made a border using two frames.
When receiving a specific event, I want to change the color of the border using animation.

Can you give an example for animation?