Low Volume Detector

//version=5
indicator("Low Volume Detector", overlay=true)

// Parameters
length = input.int(20, title="Volume MA Length")
threshold = input.float(0.5, title="Low Volume Threshold (as % of MA)", minval=0.1, step=0.1)

// Volume logic
vol = volume
volMA = ta.sma(vol, length)
lowVol = vol < (volMA * threshold)

// Plot background when volume is low
bgcolor(lowVol ? color.new(color.red, 85) : na, title="Low Volume Background")

// Optional: plot volume and its MA in separate pane
plot(vol, title="Volume", color=color.gray, style=plot.style_columns)
plot(volMA, title="Volume MA", color=color.orange)