OSC 112 Reset Text Cursor Color

OSC 112 ST puts the color of the text cursor, OSC 12, back as the terminal started it, undoing any change made with OSC 12 ; Pt ST. xterm resets it to the value it started with (ResetColorsRequest).

It takes no parameter. xterm ignores an OSC 112 that carries anything after the number, OSC 112 ; 1 ST say, as a malformed sequence (do_osc); an empty one, OSC 112 ; ST, is the same as none.

libghostty-vt has it, and agrees with xterm.

Validation

OSC112-1: After a change

\e]12;red\a
\e]112\a
\e]12;?\a

|____|
reply \e]12;rgb:0000/0000/0000\a

OSC112-2: Back to where it started, not to the foreground

\e]10;blue;red;red\a  # foreground, background, cursor
\e]112\a
\e]12;?\a

|____|
reply \e]12;rgb:0000/0000/0000\a