Hello Traders.
in this script, Bollinger bands are made based on a standard deviation with respect to Fibonacci ratios. I hope you can be satisfied. If you are satisfied with this script, please like and feel free to share your comments with me.
Teal Upper and Lower B-Bands = 1.0 Standard Deviation
Aqua Upper and Lower B-Bands = 1.618 Standard Deviation
Orange Upper and Lower B-Bands = 2.618 Standard Deviation
Red Upper and Lower B-Bands = 3.618 Standard Deviation
Purple Upper and Lower B-Bands = 4.236 Standard Deviation
you can use this indicator by clicking the button (Add to Favorite Scripts) and then add it to your chart from (Fx) section.