Simple LoginForm using GroovyFX

LoginForm.groovy

/**
* Original JavaFX tutorial:
* http://docs.oracle.com/javafx/2/get_started/form.htm
* Tested using JDK8
*/
@Grab('org.codehaus.groovyfx:groovyfx:0.4.0')
//@GrabExclude('org.codehaus.groovy:groovy-all')

import static groovyx.javafx.GroovyFX.start

start {
    stage(title: 'Login Form',width: 300, height: 275, show: true) {
        scene(width: 500, height: 250) {
           gridPane(style: "-fx-background-color: burlywood", hgap:10, vgap:10, alignment:CENTER, padding:[25,25,25,25]) {
            text('Welcome', row:0, column:0, font:'20px Tahoma')
            label('User Name:', row:1, column:0)
            textField(row:1, column:1)
            label('Password:', row:2, column:0)
            passwordField(row:2, column:1)
            txt = text('Please sign in', column:1, row:6)
            hbox(padding:10, alignment:BOTTOM_RIGHT, column:1, row:4){
              button('Sign in', onAction: {e -> txt.setFill(FIREBRICK); txt.setText('Sign in button')})
              button('Quit', onAction: {System.exit(0)})
            }
           }
        }
    }
}