The start color, which will represent the middle color of the chart
alpha
The alpha or transparency level to use in this color model, typically taken from the chart's ColorModel appearance settings.
columnCount
The amount of columns in the chart.
rowCount
The amount of rows in the chart.
Requirements
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2