study("MACD DEMA Heat Bckgrd",shorttitle='MACD_DEMA_Heat', overlay=true)
//by ToFFF
//MACD DEMA en Overlay sur le graphe principal
sma = input(12,title='DEMA Courte')
lma = input(26,title='DEMA Longue')
tsp = input(9,title='Signal')
switch = input(true, title="Enable Heatmap?")
MMEslowa = ema(close,lma)
MMEslowb = ema(MMEslowa,lma)
DEMAslow = ((2 * MMEslowa) - MMEslowb )
MMEfasta = ema(close,sma)
MMEfastb = ema(MMEfasta,sma)
DEMAfast = ((2 * MMEfasta) - MMEfastb)
LigneMACDZeroLag = (DEMAfast - DEMAslow)
MMEsignala = ema(LigneMACDZeroLag, tsp)
MMEsignalb = ema(MMEsignala, tsp)
Lignesignal = ((2 * MMEsignala) - MMEsignalb )
MACDZeroLag = (LigneMACDZeroLag - Lignesignal)
MACDZeroLagColor = LigneMACDZeroLag > Lignesignal ? #69A84F : #FF473B
bgcolor(switch?MACDZeroLagColor:na,transp=40)