Now look and feel is FlatLaf from https://www.formdev.com/flatlaf/. This look is default, other looks can be selected from settings. I am considering dropping this setting, as I think it is unlikely that anyone would want any of the old options.
All icons are now Vector icons with modern look. Icons scale now with screen DPI, so they should be about same size in all screen. If you have 2 screens with different DPI, things do not work yet.
3 new buttons:
Automatically insert variation
Score current position
Turn on/off Ai analysis
Settings file name is now gowrite31.cfg, and encoded with UTF-8.
Misc bug fixes
And internal improvements:
Ai analysis storage in SGF updated to more compact. Compatible with Hactar Go 3.2 version.
GOWrite now use only SVG icons.
Property files are saved with UTF-8 format.
GOWrite.jar contains all dependencies, making releasing much easier.