For those who are using charts with white backround they should change from the indicator options->style the black color to white. OB/OS zones are at 200 and -200 and marked with aqua color above below the candles.
backtest
/*backtest start: 2022-05-16 00:00:00 end: 2022-05-22 23:59:00 period: 15m basePeriod: 5m exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}] */ study("Matrix Series",shorttitle="MS",precision=1) Smoother=input(5) nn = Smoother //--Sup/Res Detail