Have you tried setting JButton.setOpaque(true)?
[java]JButton button = new JButton("test");
button.setBackground(Color.RED);
button.setOpaque(true);[/java]
Have you tried setting JButton.setOpaque(true)?
[java]JButton button = new JButton("test");
button.setBackground(Color.RED);
button.setOpaque(true);[/java]