Icons from Material design icons not recognized

[bernhard-kleine]

JabRef 5.0-beta.519--2020-03-02--f908883
Windows 10 10.0 amd64
Java 13.0.2

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

Fonts from Material Design Icons are not recognized: airballoon, or account.
Steps to reproduce the behavior:

1. open jabref
2. choose any group
3. add a color and as the icon name airballoon or account
4. save and see that the color is changed while the icon is not.

This has been working before. IIRC it was not possible to add icons with hyphens in the name, but the names airballoon and account do not have any icons

When I checked this in Jabref 4.1 the icon was there!!!!!

Log File

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[stefan-kolb]

@JabRef/developers 2b760cd caused this issue.
#5245
Obviously only icons contained inside JabRefIcons are available now.

The question is - do we really want this feature? Not sure if changing the line back to

        return Enums.getIfPresent(MaterialDesignIcon.class, iconCode.toUpperCase(Locale.ENGLISH))
                    .toJavaUtil()
                    .map(icon -> new InternalMaterialDesignIcon(getColor(), icon));

will reintroduce the referenced issue (#5245).
This feature also only makes sense, if we have a dropdown with all available icons IMHO.

[bernhard-kleine]

It would be very good, if a dropdown with icons is avaaible. The present situtation is untainable.