SnapBackElastic is a technical indicator that uses the MESA Adaptive Moving Average (MAMA/FAMA) as a dynamic centerline, surrounded by elastic bands that adjust their width based on directional market energy. These bands expand and contract according to bullish or bearish energy accumulation, modeled with a decay factor, signaling potential price reversals when the bands compress and a snap-back is imminent.

Key features include:
- Adaptive MAMA/FAMA centerline with phase-based alpha
- Elastic bands reflecting market pressure
- Bull and bear energy accumulation with decay
- Snap-back reversal signals triggered by energy peak reversals confirmed by qualifying candles
- Filters for liquidity (higher highs/lower lows) and candle quality (ATR-based minimum body)
- ATR-based snap zone visualization without fixed pip values
- Candle coloring by market regime and signal state
- Built-in HUD panel displaying energy bars, market regime (trend, transition, range), net force direction, and snap state (idle, load, active)
- ATR-based distance calculations for compatibility with any instrument and timeframe

The indicator is designed primarily for Gold (XAUUSD) on 1- and 5-minute charts but is applicable to any liquid instrument, including BTCUSD, EURUSD, NAS100, and commodities. It provides visual and signal-based insights to identify potential snap-back reversals in price movements.