This new functions plotbar and plotcandle are amazing! Just look at this smoothed candles here)))
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.
study("Example 4") len = input(9) smooth(x) => sma(x, len) o = smooth(open) h = smooth(high) l = smooth(low) c = smooth(close) plotcandle(o, h, l, c, color=c >= o ? lime : red)