gistfile1.java

// in a griffon view
// with the hypothetical TridentBuilder adding the animate node

frame( title: "Trident+Groovy", size: [400,200],
       locationRelativeTo: null, visible: true ) {
  flowLayout()
  button = button("Sample", 
    foreground: animate([Color.BLUE, Color.RED], duration:2500, id:'tl'),
      mouseEntered: {tl.play()},
      mouseExited: {tl.playReverse()})
  }
}