#########PAINT_MOMENTUM########
###########################PAINT MOMENTUM############
#input over_bought = 40.0;
#input over_sold = -40.0;
input percentDLength = 3;
input percentKLength = 5;

def min_low = Lowest(low, percentKLength);
def max_high = Highest(high, percentKLength);
def rel_diff = close - (max_high + min_low) / 2;
def diff = max_high - min_low;

def avgrel = ExpAverage(ExpAverage(rel_diff, percentDLength), percentDLength);
def avgdiff = ExpAverage(ExpAverage(diff, percentDLength), percentDLength);

def SMI = if avgdiff != 0 then avgrel / (avgdiff / 2) * 100 else 0;
###SMI.SetDefaultColor(GetColor(1));

def UpBar = SMI >avgrel ;
def DownBar = SMI<avgrel ;

input PaintBars = Yes;
AssignPriceColor (if !PaintBars then Color.CURRENT else if UpBar >= 0 and UpBar > DownBar[0] then Color.GREEN else if UpBar <= 1 and UpBar < DownBar[1] then Color.RED else Color.WHITE);
#UpBar > DownBar[0]

Is this for MACD or Stochastics?