List of Java Swing UI properties?

There seem to be a ton of UI properties that can be set with

 UIManager.put("key", value);

Is there a list somewhere of all keys that can be set?

It depends on the Java implementation. Here is the simple code that you can run to see all available properties and their current values.

public static void main(String[] args) {
            UIDefaults defaults = UIManager.getDefaults();
            System.out.println(defaults.size()+ " properties defined !");
            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[i][0]+" ,, "+rowData[i][1]);
            }
            JFrame f = new JFrame("UIManager properties default values");
            JTable t = new JTable(rowData, colName);
            f.setContentPane(new JScrollPane(t));
            //f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            f.pack();
            f.setVisible(true);
        }