OpenJFX: Follow HiDPI Scaling Settings in Fedora Workstation 32 (Gnome)

[wurstsemmel at mailbox.org]

Dear OpenJFX Developers,

on Fedora 32 Workstation (Gnome) the AppImage from Cryptomator
(cryptomator.org) does not follow the system-wide scale settings from
Gnome Settings.

*System Setup
Linux: Fedora Workstation 32 (Gnome)
Hardware: Dell XPS 13 with HiDPI (200 % scaling)
Cryptomator version: 1.5.5-x86_64 AppImage

*Expected Behavior
App window should scale according to system-wide settings.

*Actual Behavior
App window scales at 100 %.

*Two workarounds exist:
$gsettings set org.gnome.desktop.interface scaling-factor 2
$GDK_SCALE=2 ./cryptomator-1.5.5-x86_64.AppImage

According to the developers from Cryptomator (see 
https://github.com/cryptomator/cryptomator/issues/1242#issuecomment-643095195
) this is a bug which was intended to be fixed with 
https://bugs.openjdk.java.net/browse/JDK-8137050. However, the bug
still occurs in OpenJFX 14.0.1 and 11.

I am happy to help if anything is unclear. Please re-open the bug JDK-
8137050 and make OpenJFX follow the system-wide scaling settings in
Gnome.

Thank you!

wurstsemmel