'Declaration Public ReadOnly Property LuminanceOffset As Nullable(Of Double)
public Nullable<double> LuminanceOffset {get;}
Luminance is also referred to as brightness.
The luminance offset is applied by converting the base color from RGB to HSL, then the value of this property to the luminance channel, then converting back to RGB.
Assigning a value of null to this property implies that the associated color has no specific luminance offset.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, 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