VTERM_ATTR_BLINK
state->pen.blink = 0; setpenattr_bool(state, VTERM_ATTR_BLINK, 0);
setpenattr_bool(state, VTERM_ATTR_BLINK, state->pen.blink);
setpenattr_bool(state, VTERM_ATTR_BLINK, 1);
setpenattr_bool(state, VTERM_ATTR_BLINK, 0);
case VTERM_ATTR_BLINK:
case VTERM_ATTR_BLINK:
case VTERM_ATTR_BLINK: return VTERM_VALUETYPE_BOOL;