Custom themes for JabRef
This directory contains various themes contributed by users. Themes that cover both color schemes in one file (via @media (prefers-color-scheme: …)) sit directly in this directory and work with any color scheme; the DarkTheme and LightTheme subfolders hold the themes that only cover one scheme, so select the matching color scheme in JabRef for those. Either way, open File > Preferences > General > Appearance, tick Custom theme and select the CSS file.
The themes target JabRef 6 and later. Versions for JabRef 5.x are available in the repository history.
Keep in mind that user contributed themes might be distributed under different Open Source licences if you want to modify them.