sorbet: cursor is hard to see in visual mode

[micampe]

It's difficult to see the cursor when in visual mode because Cursor uses reverse and Visual foreground is very similar to the Normal background.

I worked around this by setting fixed cursor colors instead of using reverse, like I've seen it's being done to solve a similar issue in MatchParen.

I'm using MacVim r179 (Vim 9.1.0)