FATL (Fast Adaptive Trend Line) - the «fast» adaptive trend line is calculated using a digital low-pass filter (cream-colored line on the chart).
More details here.

Ticker FATL
Übersetzt aus dem Russischen von MetaQuotes Ltd.
Originalpublikation: https://www.mql5.com/ru/code/7380
The optimized variant of the Kaufman's Adaptative Moving Average by wellx
Example of optimization using the "running total" method.
TTF
The classic TTF with the T3 smoothing method and signal lines.
Ticker SATL
SATL (Slow Adaptive Trend Line) - the «slow» adaptive trend line is obtained using a digital low-pass filter of a different order (light-blue line on the chart).
TrailCD
The indicator shows convergence/divergence of the fast and slow trailing.