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Previous High/Low + Gann Zones

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This indicator plots the previous higher timeframe High and Low (default: 4H) and transforms the range into structured Gann-style zones for intraday precision and reaction mapping.

🔹 Key Features
Previous HTF High & Low
Automatically plots the last completed candle’s High and Low
Fully customizable colors and line thickness
Gann-Based Internal Levels
Divides the range using key ratios:
0.15
0.382
0.5
0.618
0.85
Levels are calculated top-down:
0 = High
1 = Low
Dynamic Zone Shading
The range is split into visual zones between levels
Each zone has individually customizable colors
Adjustable transparency (contrast control) to suit your chart style
Clean Visualization Controls
Toggle internal levels ON/OFF
Toggle zone shading ON/OFF
Choose line styles (Solid / Dashed / Dotted)
🔹 How to Use

This tool is designed for traders who use:

Range-based trading
Mean reversion / premium-discount concepts
Gann / Fibonacci-style reactions

Typical ideas:

Identify premium (upper zones) vs discount (lower zones)
Watch for reactions around:
0.382 and 0.618 (key decision zones)
0.5 (equilibrium)
Use zones as intraday support/resistance bands

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