<skinset name="Default" image="window.png">
    <widget type="Window" xpos="41" ypos="100">
        <part type="left" xpos="0" ypos="0" width="12" height="12" />
        <part type="right" xpos="0" ypos="16" width="12" height="12" />
        <part type="down" xpos="0" ypos="32" width="12" height="12" />
        <part type="up" xpos="0" ypos="48" width="12" height="12" />
    </widget>
</skinset>