JavaFX application on KDE Wayland - tiny

[Christopher Schnick]

You are probably looking for glass.gtk.uiScale

I think I reported a while ago that the automatic scale detection for 
KDE is not working, but apparently there wasn't an easy API replacement 
available.

On 21/11/2025 18:15, Chad Preisler wrote:
> Hello,
>
> When I run my JavaFX (using JFX25) application on KDE Plasma using 
> Wayland the fonts are incredibly small. How can I scale the 
> application so that things are not so tiny?
>
> FYI: I had a similar issue with Netbeans. I know it's different 
> because it is Swing. I was able to get Netbeans to look good with the 
> following settings.
>
> -J-Dsun.java2d.uiScale=2 -J-Dflatlaf.uiScale=0.75
>
> Is there something similar I can do for JavaFX?
>
> Thanks,
> Chad
>
>