Version 3.1 is compatible with macOS 10.15 Catalina. There are two items to note:
1) Adobe Illustrator document previews do not currently show Art View’s previews. We’ve worked with Apple regarding this and they are releasing a fix for this with macOS 10.15.3 (release date unknown). All other previews are working as expected.
2) “Reveal in Finder” functionality is no longer available in Quick Look previews. Therefore, Art View 3 no longer supports “Reveal in Finder” functionality under Catalina.