Support/Resistance Zone Auto [PRO]

This is an indicator that automatically detects and displays support / resistance zones.
It displays up to 5 zones with a large number of reversals.

<Description of Input>
- Zone Color : Set the zone color.
- Number Of Zones : Set the number of zones to display. Can be set from 1 to 5.
- Zone Width : Set zone width. Selectable from "Very Wide", "Wide", "Normal", "Narrow", "Very Narrow".
- Number Of Reference Bars : Set the number of bars to reference. Selectable from "500", "1000" and "1500". When "1000" is set, the past 1000 bars are referenced from the latest bar (current bar) to investigate the reversal status.
- Reference Point Label : Set the color of the label displayed at the reference start position. Selectable from "Black", "White", and "None". If this parameter is "Black" and the "Number Of Reference Bars" parameter is "1000", a black label with "1000 bars" will be displayed 1000 bars before the current bar.

<Difference from version>
- Increased maximum zone display from 3 to 5.
- Zone color can be set with Input.
- Display the price range of the zone (eg 1.5600 - 1.5650)
- Display Reference Point Label.

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Updates:
Fixed an issue that caused errors in some currency pairs.