<?xml version="1.0" encoding="UTF-8" ?>
<Page>
  <StackLayout>
    <Button text="button 1" style="background-color: red; margin: 5;"/>
    <Button text="button 2" style="background-color: lightblue; margin: 5;"/>
    <Button text="button 3" style="background-color: lightgreen; margin: 5;"/>
  </StackLayout>
</Page>