如何设置一个 LookAndFeel 的 default 字体大小？

try {
com.incors.plaf.alloy.AlloyLookAndFeel.setProperty(
"alloy.licenseCode",
"x#myCompany#skd23j#dsjd9"); //将所有组件设置统一字体
Font currentFont = new Font("宋体", 0, 12);
UIManager.put("Button.font", currentFont);
UIManager.put("ToggleButton.font", currentFont);
UIManager.put("RadioButton.font", currentFont);
UIManager.put("CheckBox.font", currentFont);
UIManager.put("ColorChooser.font", currentFont);
UIManager.put("ToggleButton.font", currentFont);
UIManager.put("ComboBox.font", currentFont);
UIManager.put("ComboBoxItem.font", currentFont);
UIManager.put("InternalFrame.titleFont", currentFont);
UIManager.put("Label.font", currentFont);
UIManager.put("List.font", currentFont);
UIManager.put("MenuBar.font", currentFont);
UIManager.put("Menu.font", currentFont);
UIManager.put("MenuItem.font", currentFont);
UIManager.put("RadioButtonMenuItem.font", currentFont);
UIManager.put("CheckBoxMenuItem.font", currentFont);
UIManager.put("PopupMenu.font", currentFont);
UIManager.put("OptionPane.font", currentFont);
UIManager.put("Panel.font", currentFont);
UIManager.put("ProgressBar.font", currentFont);
UIManager.put("ScrollPane.font", currentFont);
UIManager.put("Viewport", currentFont);
UIManager.put("TabbedPane.font", currentFont);
UIManager.put("TableHeader.font", currentFont);
UIManager.put("TextField.font", currentFont);
UIManager.put("PasswordFiled.font", currentFont);
UIManager.put("TextArea.font", currentFont);
UIManager.put("TextPane.font", currentFont);
UIManager.put("EditorPane.font", currentFont);
UIManager.put("TitledBorder.font", currentFont);
UIManager.put("ToolBar.font", currentFont);
UIManager.put("ToolTip.font", currentFont);
UIManager.put("Tree.font", currentFont);
UIManager.put("JDialog.font", currentFont);
UIManager.put("JOptionPane.font", currentFont);
//UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
//UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
// SwingUtilities.updateComponentTreeUI(this); javax.swing.LookAndFeel alloyLnF =
new com.incors.plaf.alloy.AlloyLookAndFeel();
UIManager.setLookAndFeel(alloyLnF); } catch (Exception ex) {
ex.printStackTrace();
}