Ever since JabRef 5, the texts in the preferences are blurry. This is at least the case when running JabRef 5 under Ubuntu 16.04, where I have tested it. Affected is the right side of the preferences with the white background. Only input fields are excluded from it, as it can be seen in the following screenshot, which shows the difference quite well:
Ever since JabRef 5, the texts in the preferences are blurry. This is at least the case when running JabRef 5 under Ubuntu 16.04, where I have tested it. Affected is the right side of the preferences with the white background. Only input fields are excluded from it, as it can be seen in the following screenshot, which shows the difference quite well: