<?xml version="1.0" encoding="UTF-8" ?>
<Page>
  <GridLayout columns="*,*,*" rows="*,*,*">
    <Button text="1" style="background-color: red; margin: 5;"/>
    <Button text="2" col="1" style="background-color: lightblue; margin: 5;"/>
    <Button text="3" col="2" rowSpan="2" style="background-color: lightgreen; margin: 5;"/>
    <Button text="4" row="1" rowSpan="2" colSpan="2" style="background-color: lightpink; margin: 5;"/>
    <Button text="5" row="2" col="2"  style="background-color: wheat; margin: 5;"/>
  </GridLayout>
</Page>