This is a simple JavaFX Login Form with a TRON like effect. In this example I am using CSS to style the TextField and Button. Here is the snippet of the CSS and Effect code:

.text-field{
 -fx-background-color: transparent;
 -fx-border-color: #00CCFF;
 -fx-text-fill: white;
}

.password-field{
 -fx-background-color: transparent;
 -fx-border-color: #00CCFF;
 -fx-text-fill: white;
}

.button{
 -fx-background-color: transparent;
 -fx-border-color: white;
 -fx-background-radius: 30;
 -fx-border-radius: 30;
 -fx-text-fill: white;
 -fx-font-weight: bold;
 -fx-font-size: 14px;
 -fx-padding: 10 20 10 20;
}

DropShadow effect = new DropShadow();
 effect.setColor(color);
 effect.setBlurType(BlurType.GAUSSIAN);
 effect.setSpread(spread);
 effect.setRadius(radius);

Reference: JavaFX 2 Form from our JCG partner Mark Anro Silva  at the GlyphSoft blog.