GFC ADX

Plots the Average Directional Index (ADX) to measure trend strength using configurable DI length and ADX smoothing, with visual reference levels for weak, strong, and very strong trends. The goal is to add confirmation before taking a trade: is the ADX contracting/going down? or is it going up, passing the lower threshold?
Assumptions: Uses standard Wilder ADX calculation on chart timeframe and exchange timezone, evaluates trend strength only (not direction), and applies fixed reference levels commonly used in technical analysis.
by GlutenFreeCrypto