MA Ribbon Buy & Sell Signals

Moving Averages:
The script calculates simple moving averages for 15, 30, 150, and 200 periods and plots them on your chart.

Signal Conditions:

A buy signal is generated when the 15 MA crosses above the 30 MA and the closing price is above the 150 and 200 MAs (indicating an overall uptrend).
A sell signal is generated when the 15 MA crosses below the 30 MA and the closing price is below the 150 and 200 MAs (indicating an overall downtrend).
Visual Cues:
The script uses green arrows below the bar for buy signals and red arrows above the bar for sell signals.