YBL – Doble EMA 20/50 (Nube + Alertas)

YBL – Doble EMA 20/50 (Cloud + Alerts)

This script plots a double EMA 20/50 setup with:
• A colored trend cloud between the EMAs
• Double-line styling (base + edge) for each EMA
• Crossover alerts when EMA 20 crosses EMA 50

It’s designed to be a clean trend filter and structure reference for swing and intraday traders.

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🔧 Core logic
• EMA 20 (fast) → short-term direction.
• EMA 50 (slow) → higher timeframe / swing bias.
• Bullish trend when EMA 20 ≥ EMA 50.
• Bearish trend when EMA 20 < EMA 50.

The area between both EMAs is filled with a trend cloud:
• Bull cloud color when EMA 20 is above EMA 50.
• Bear cloud color when EMA 20 is below EMA 50.

Opacity of the cloud is fully configurable.

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🎨 Visuals & customization

Inputs let you control:
• Lengths
• EMA rápida (20) – default 20
• EMA lenta (50) – default 50
• Line thickness (grpViz)
• Grosor base → thick, semi-transparent base line.
• Grosor borde → thinner edge line on top.
• Colors
• Color EMA 20 – fast EMA color
• Color EMA 50 – slow EMA color
• Color nube alcista – bullish cloud color
• Color nube bajista – bearish cloud color
• Opacidad nube – from opaque (0) to fully transparent (100)

Each EMA is drawn with two layers:
• A base line with higher transparency and greater width.
• A border line for sharp, precise visibility.

This makes the EMAs easy to read on any background and timeframe.

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📈 How to use it

Typical use cases:
• Trend filter
• Only look for longs when EMA 20 is above EMA 50 and the cloud is bullish.
• Only look for shorts when EMA 20 is below EMA 50 and the cloud is bearish.
• Dynamic S/R
• EMA 20 can act as a short-term pullback level within the trend.
• EMA 50 can act as a deeper support/resistance zone.
• Context layer
• Works very well as a background bias combined with your main entry tool (order flow, volume, price action patterns, etc.).

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🔔 Alerts

Two built-in, ready-to-use alert conditions:
• Bullish cross – EMA 20 > EMA 50
• Triggers when EMA 20 crosses above EMA 50.
• Marks the start of a potential bullish regime.
• Bearish cross – EMA 20 < EMA 50
• Triggers when EMA 20 crosses below EMA 50.
• Marks the start of a potential bearish regime.

Both alerts are confirmed at bar close and are ideal for:
• Getting notified of trend shifts on your watchlist.
• Automating scans across symbols/timeframes.

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⚠️ Disclaimer
This script is for educational and analytical purposes only and does not constitute financial advice. Always do your own research and manage your risk.