ZEMA Crossover with Volume & ATR Filters

This indicator uses the crossover of two ZEMAs (Zero-Lag Exponential Moving Averages) with additional filters based on volume and ATR to confirm trading signals. It displays "BUY" and "SELL" entry/exit points on the chart.

"BUY" Signal: Appears when ZEMA1 crosses above ZEMA2, volume exceeds the threshold (if filter is enabled), and ATR is above its SMA (if filter is enabled).
"SELL" Signal: Appears when ZEMA1 crosses below ZEMA2, with the same filter conditions.
ZEMA lines are plotted on the chart: green (ZEMA1) and red (ZEMA2). The area between them is filled with color (green for bullish, red for bearish).