Change colour of JOptionPane

[chirag123]

I need to change the colour of a button in a JOptionPane. How my program works is when a button is pressed a JOptionPane appears and displays a message and I need to change the colour of the button text in the JOptionPane. Here's the code for the option pane:

UIManager um=new UIManager();
um.put("OptionPane.background",new ColorUIResource(100,200,255));
um.put("Panel.background",new ColorUIResource(100,200,255));
um.put("OptionPane.messageForeground", Color.blue);
button.titleLabel.textColor = (UIColor blueColor);
JOptionPane.showMessageDialog(null, "It takes approximately 1 hour and 5 minutes to go from Nottingham to Leicester", "Time", JOptionPane.PLAIN_MESSAGE);

thanks

[ozzyman]

JOptionPane is a JComponent, so you can use JComponents setBackground() method

javax.swing.JOptionPane j = new javax.swing.JOptionPane();
j.setBackground(Color.red);