I have the same issue on both of my macs running Catalina.

The update is awesome! Thanks!

What third-party apps? And how can one purchase Scrivener for countless times? They are on three platforms only... unless countless has recently be redefined as, what, like 3? or 6?

Okay, inspired by Bridey, I've updated the way current line highlighting looks for 3.0.1: http://www.literatureandlatte.com/forum_images//CurrentLine-20171213-154951.png I reckon there will be newfound appreciation for 3.0's subtle border... There was no intent to be rude, but to offer feedback... ...

Pavel (and any others who are finding this a difficult issue), There is a way to get what appears to be a borderless highlight line in both editor and composition mode, but it needs a bit of fiddling. The basic process is simple but there's a fair bit of trial and error involved to get the right co...

I'll compromise: if enough people are still complaining about this in six months' time, I'll consider making it optional. :) It is only a 20% blend of black over the highlight edges, though, so I think some of the reactions here are a little excessive - I think it is probably just the fact that it ...

The darker border color is killing me. The old way in Scrivener 2 was perfect. I don't know why it's changed. I totally agree. Here, where we concentrate on our writing, there's a silly border if we want the line highlighted, with no way of turning it off! I can't get used to it. What a step backwa...

The latest version of bookends has improved its support for importing databases from Papers 3. And for those who want a magic citation interface (I've never used it so YMMV), if you use Alfred I curated a set of tools, one of which does a live author search from your database and pastes the citatio...

Magic citation and Scrivener 2 work together perfectly. I also contacted Papers yesterday and pretty much got the same response. Can I ask what other reference manager software works together with Scrivener 3, in the way that Papers does with Scrivener 2 (i.e., magic citation, not Cmd-Y way)? TIA

A black outline? That does sound more like a bug to me. As noted in my screenshot above, it should be fairly subtle. What are your System Preferences settings like, in terms of accessibility features? The problem is the border. I'm sure that's clear by now. It's got nothing to do with accessibility...