Color of the selected tab in a tabbedpane

Question

I wander if anyone knows how to change the color of a tab when it is selected. I have tried to use; "tabbedPane.setBackgroundAt(1,rgdcolor)" , where 1 is the tab chosen and rgb is my predifined color, but the color of the tab stays unchanged.
/anna

Answer 1

Here is some code that will display all the UIManager properties and the default values.
import javax.swing.*;
import java.util.*;
public class ShowUIManager {
    public static void main(String[] args) {
        UIDefaults defaults = UIManager.getDefaults();
        System.out.println("Count Item = " + defaults.size());
        String[ ] colName = {"Key", "Value"};
        String[ ][ ] rowData = new String[ defaults.size() ][ 2 ];
        int i = 0;
        for(Enumeration e = defaults.keys(); e.hasMoreElements(); i++){
            Object key = e.nextElement();
            rowData[ i ] [ 0 ] = key.toString();
            rowData[ i ] [ 1 ] = ""+defaults.get(key);
            System.out.println(rowData[0]+" ,, "+rowData[i][1]);
JFrame f = new JFrame("UIDefaults Key-Value sheet");
JTable t = new JTable(rowData, colName);
f.setContentPane(new JScrollPane(t));
//f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.pack();
f.setVisible(true);