This is Mrtools' Histogram Bars version of the ALMA (Arnaud Legoux Moving Average) which comes with (newer drop down box) Multi-timeframe, Alerts, Arrows & more.
Attached is also the information booklet about the Arnaud Legoux Moving Average in PDF.
If you are looking for the on-chart Moving Average versions they can also be found here:
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8/23/21 Edit by banzai: Please download a new version over here:
viewtopic.php?p=1295442427#p1295442427