I think you are just seeing rounding to integral pixel sizes.
If you go into the Swing GTKLookAndFeel.java class you'll find a comment
on this.
-phil.
Jihed Amine Maaref wrote:
Hi,
Using Gnome, Java applications running with openjdk do not scale fonts
according to the dpi (dots per inch) value except for some limited
values. For example, fonts are rendered exactly the same way from a
dpi of 90 going to a dpi of 97 (only changes for dpi=89 and dpi=98),
this makes them look ugly and not proportional to the other desktop
applications font. It this a known bug we're working on or is there
already a way to configure fonts in openjdk to fix this ?
Thanks and congratulations for this very welcome project.