Zorn Band by Yuya Mido
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Bollinger Band based on EMA (close, 30) with fills between 2 and 4 sigmas which is originally developed by Mr. Yuya Mido (https://twitter.com/Sakura_yMido)
See the following video on YouTube for details (in Japanese)
https://youtu.be/sEv77-hfUok
Wrong: Mr. Yuya Mido
Correct: Mr. Yuiya Mido