JabRef 5.0-dev--snapshot--2019-05-14--master--c754a790d
Windows 10 10.0 amd64
Java 1.8.0_212

• I have tested the latest development version from http://builds.jabref.org/master/ and the problem persists

Font weight of entry-type-selection-dropdown-menu depending on clicking on the label or the small pen on the left.
Always reproduceable.

left: clicking on the pen - right: clicking on the label