custompanel.xml

<?xml version='1.0' encoding='UTF-8'?>
<pyvcp>
         <vbox>
         <relief>RIDGE</relief>         
         <bd>6</bd>
                <label>
                        <text>"Spindle setpoint:"</text>
                        <font>("Helvetica",20)</font>
                </label>
                <bar>
                        <halpin>"spindle-setpoint"</halpin>
                        <max_>24000</max_>
                </bar>
                <label>
                        <text>"Spindle speed:"</text>
                        <font>("Helvetica",20)</font>
                </label>
                <bar>
                        <halpin>"spindle-speed"</halpin>
                        <max_>24000</max_>
                </bar>
                <label>
                        <text>"Spindle-At-Speed:"</text>
                        <font>("Helvetica",20)</font>
                </label>
                <hbox>
                    <label>
                            <text>"             "</text>
                            <font>("Helvetica",20)</font>
                    </label>
                    <led>
                        <halpin>"spindle-at-speed-led"</halpin> 
                        <size>30</size> 
                        <on_color>"green"</on_color>
                        <off_color>"red"</off_color>
                    </led>
                </hbox>
        </vbox>
</pyvcp>