TTYC_SETRGBB
[TTYC_SETRGBB] = { TTYCODE_STRING, "setrgbb" },
tty_term_has(term, TTYC_SETRGBB))
!tty_term_has(term, TTYC_SETRGBB)))
else if (tty_term_has(tty->term, TTYC_SETRGBB))
tty_putcode_iii(tty, TTYC_SETRGBB, r, g, b);