A glitch...

JabRef 5.0.1-dev--2019-11-29----9043f8008
Linux 4.9.0-11-amd64 amd64
Java 13.0.1

• I have tested the latest development version from http://builds.jabref.org/master/ and the problem persists (No. I could not. See other issue)

In dark theme, the window asking to restart JabRef remains in light mode.

Steps to reproduce the behavior:

1. Set JabRef to dark theme
2. In Preferences, General, change the language
3. Click on Save
4. A window asking for restarting JabRef pops up

This window is in light theme:

Note: same glitch for windows "Save before closing", "Check integrity", "Overwrite keys" and "Download full text documents".