The alternating color “bands” in the data sheet display disappeared. I suspect it may be something I was compelled to do to override a terrible decision Mozilla made in v.91 of Firefox, but I don’t remember what all I did to negate FF’s tinkering. I think it had to do with increasing contrast or something else in OS system “Accessibility” settings. I also upgraded to OS 11.5.2 yesterday, so maybe that’s it.
Put another way, what control does a user have on PanX row alternating colors? I thought it just was that way in X, and a great improvement from 6, too. But now it is gone. Just white.