GenericGradient gradient = new GenericGradient();
gradient.setTopColor(new Color(0.0F, 0.0F, 0.0F, 0.0F)); //Red, Green, Blue, Alpha. This makes the gradient white
gradient.setBottomColor(new Color(0.0F, 0, 0, 0.0F)); //Red, Green, Blue, Alpha. This makes the gradient red
gradient.setHeight(4).setWidth(10);//This makes it 32*32.
gradient.setAnchor(WidgetAnchor.TOP_RIGHT);
gradient.setVisible(true);
player.getMainScreen().attachWidget(gradient);
        GenericGradient gradient2 = new GenericGradient();
gradient2.setTopColor(new Color(1.0F, 0.0F, 0.0F, 0.0F)); //Red, Green, Blue, Alpha. This makes the gradient white
gradient2.setBottomColor(new Color(1.0F, 0, 0, 0.0F)); //Red, Green, Blue, Alpha. This makes the gradient red
gradient2.setHeight(4).setWidth(10);//This makes it 32*32.
gradient2.setAnchor(WidgetAnchor.TOP_RIGHT);
gradient2.setVisible(true);
player.getMainScreen().attachWidget(gradient2);