Ok.
I corrcted the link.
The SWT library for the GUI is not in my power to change. I am not really happy with that library. It's ok for Windows but has many issues with mac and linux. I am thinking of changing the GUI to Java FX. Which looks similar on all systems and does not use any native drawing.
The GUI really has issues when it's run on too small resolution or on scaled Desktops.
I changed the layout on V1.1 maybe this will work better for you.