Finger trap indicator

study(title="Moving Average Exponential", shorttitle="EMA", overlay=true)
len = input(8, minval=1, title="Length")
src = input(close, title="Source")
out = ema(src, len)

len1 = input(96, minval=1, title="Length1")
out1 = ema(src, len1)
len2 = input(408, minval=1, title="Length2")
out2 = ema(src, len2)

data = close > out
data1 = close < out
data2 = close > out1
data3 = close < out1
data4 = close > out2
data5 = close < out2
data6 = out > out1 and out1 > out2
data7 = (out < out1 and out1 < out2)

bgUp    = (data and data2 and data4 and data6) ? green : na
bgDown  = (data1 and data3 and data5 and data7) ? red : na
// === /LOGIC ===

// === PLOTTING ===
bgcolor(bgUp, transp=50)
bgcolor(bgDown, transp=50)