VTERM_PROP_ICONNAME
settermprop_string(state, VTERM_PROP_ICONNAME, command + 2, cmdlen - 2);
settermprop_string(state, VTERM_PROP_ICONNAME, command + 2, cmdlen - 2);
case VTERM_PROP_ICONNAME:
case VTERM_PROP_ICONNAME: return VTERM_VALUETYPE_STRING;