Oh and another thing: is there any FontConfig support?  It would be nice
to get the same fonts used as those in gtk2.

Thanks,

Cameron

This will work for all the standard L&Fs (doesn't work for
GTK L&F, may not work for some arbitrary L&F).

UIDefaults defaults = UIManager.getDefaults();
Enumeration keys = defaults.keys();
while(keys.hasMoreElements()) {
  Object key = keys.nextElement();
  Object value = defaults.get(key);
  if(value != null && value instanceof Font) {
     UIManager.put(key, null);
     Font font = UIManager.getFont(key);
     if(font != null) {
        float size = font.getSize2D();
        UIManager.put(key, new FontUIResource(font.deriveFont(size *
scale)));
     } } }

Depending on your app and system, you may be concerned with:
1) defaults.get(key) may fail with NPE on some Java versions,
  because of a "bad" font. Catching and ignoring the NPE will
  avoid the problem here.
2) Internal frame title bars will not scale to the font size under
  XP L&F. If your app uses internal frames, you should not scale
  fonts when "InternalFrame.titleFont".equals(key) and the L&F
  is XP.

Find out what is your default L&F in your platform,
and create theme which uses your favorite fonts.

This works well with Metal L&F themes and
these actually has several `default fonts` for different kind of objects
so extending DefaultMetalTheme and overriding couple methods
gives you easily fonts expected.

[clip]
Class MyMetal extends DefaultMetalTheme {
   .....
   public FontUIResource getControlTextFont() {... }
   public FontUIResource getSystemTextFont() { ... }
   public FontUIResource getUserTextFont() { ... }
   public FontUIResource getMenuTextFont() { ... }
   public FontUIResource getWindowTitleFont() { ... }
   public FontUIResource getSubTextFont() {... }
   ....
}
[/clip]

just don't forget to set it in use before gui is created.

- jt