I find the incessant blinking of the Vertical Bar Cursor or the Underline Cursor in Xcode distracting.
The easy solution is to use a block cursor and to make that cursor stop blinking. The former is easy: (Preferences \ Fonts & Colors \ Cursor drop-down menu). How do I do the latter?
The other options (stopping a vertical or underline cursor from blinking) are a recipe to not be able to spot the location of the cursor on a large monitor. Of course a blinking block cursor would be even more distracting than a blinking vertical/underline cursor.
In Emacs lingo, I'm looking for a way to unset blink-cursor-mode and to set x-stretch-cursor.