High Low Bands Indicator

How is the High Low Bands Indicator in Kite calculated? Would like to know this

Can someone please respond to my post? I have a trading system that is working brilliantly using High Low Bands (Type - Close, Period - 50, Shift Percent - 1%). But, I do not know exactly how the median price is calculated. It is definitely not the same as 50 SMA or EMA. So, please do let me know how this indicator is calculated.