macOS Catalina 10.15.2, Terminal.app 2.10
and in for example VI-mode at the command line:
There is an o under the first cursor, and an s under the second cursor. In-person, I can just about make out the tiniest difference, and distinguish the characters.
But it's not easy at all.
How can I make my Terminal.app invert the colors of light text when the cursor is over it?