Has Scrivener changed?

I haven’t made heavy use of Scrivener for the last couple of years with the exception of one project that I use to write reviews for journal articles (for which Scrivener is peerless). The last time I opened Scrivener was sometime in Fall, 2020. I’m now gearing up for another project and find there are no alternating bars on binder and the outline.The skeuomorphic properties for index cards (e.g., the red line separating title and body) see to be gone. This is also the case for older projects. I’m not too sure whether the Scrivener app has changed, been damaged, or if the updates to Big Sur have affected it. Can anyone point me in the right direction?

Indeed. Comprehensive notes here:

literatureandlatte.com/scri … s?os=macOS