A trend indicator drawn in the form of a colored histogram.

There are four color histogram display options depending on the values ​​of the input parameters:

input color UpLevelsColor=clrBlue;  // The color of the overbought level
input color DnLevelsColor=clrBlue;  // The color of the oversold level

• Above the overbought level - pink;
• Above zero but below the overbought level - brown;
• Below zero, but above the oversold levels - green;
• Below the oversold level - lime.

Originally this indicator has been written in MQL4 and was first published in the Code Base at mql4.com on 07.11.2007.

Figure 1. Indicator William36HistogramWaller