Could you tell me why nothing appears on my chart with this indicator and how to solve the problem ? Thank you very much. This is my first one. indicator1 = CALL "Exemple ADX"[14] c0 = indicator1 > 20 indicator2 = ExponentialAverage[200] c1 = close > indicator2 c3 = close < indicator2 indicator3 = CALL "last heikin" [2, 5, 1](close) c2 = close > indicator3 c4 = close < indicator3 vert = c0 AND c1 AND c2 rouge = c0 AND c3 AND c4 If vert then backgroundcolor(0,255,0) Endif If rouge then backgroundcolor(255,0,0) Endif Return vert coloured (0,255,0) as "long", rouge coloured (255,0,0) as "short"