Volume (standard) + Brightness by Intensity (Min–Max / MA)

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Volume Brightness Indicator
Quick Description
This indicator is an enhanced version of TradingView’s standard volume. The volume bars are colored just like the original (green/red or a single custom color), but with one key upgrade: brightness and transparency adjust automatically based on volume intensity.
High volume → bars appear more opaque and bright.
Low volume → bars appear more transparent and faded.
This makes it easier to spot which candles actually carry meaningful volume at a glance.
Features
Bar colors: by candle direction (green/red) or a single chosen color.
Volume moving average: optional, customizable (SMA or EMA).
Brightness methods:
Min–Max: compares volume against a historical window (with optional log scale).
MA-based: compares volume against its moving average, with an adjustable cap.
Custom transparency: define how opaque high-volume and low-volume bars appear.
How to Use
Copy the script into Pine Editor and save it.
Add it to your chart; it will display in its own panel, like the standard volume.
In Settings, choose your preferred brightness method and adjust transparency ranges.
Toggle the volume MA if you want a clear reference line.
Key Idea
The indicator does not add new data. It highlights volume intensity visually, making it easier to identify accumulation or spikes without losing the simplicity of the classic volume.

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Notes de version

Volume + Auto Brightness (MA + Min–Max blend)
Exactly like TradingView’s default Volume indicator (bars + optional MA), but enhanced with automatic brightness.
Bar opacity adjusts dynamically using both volume vs MA and historical Min–Max context, so high-intensity spikes and subtle MA crosses stand out instantly.
One simple slider — Brightness Strength — makes it ready to use out of the box.