OptionGroup.BackTint property (Access)
Gets or sets the tint that is applied to the theme color in the BackColor property of the specified object. Read/write Single.
expression A variable that represents an OptionGroup object.
The BackTint property contains a numeric expression that can be used to lighten the theme color in the BackColor property. The default value of the BackTint property is 100, which is neutral, and does not change the theme color.
To lighten the color, first determine the percentage by which to lighten from 1 to 100, and then subtract that value as a whole number from 100 and use the remainder. For example, to lighten the theme color tint by 75%, subtract 75 from 100 and use the remainder, which is 25.
This property is not surfaced in the property sheet.
The following code example lightens the BackColor property by 75%.
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