Get the sum for each color channel

C# | Visual Basic | Visual C++ |
[ObsoleteAttribute("User GetSum() instead, will be removed in the next version")] public TColor Sum { get; }
<ObsoleteAttribute("User GetSum() instead, will be removed in the next version")> _ Public ReadOnly Property Sum As TColor
[ObsoleteAttribute(L"User GetSum() instead, will be removed in the next version")] public: property TColor Sum { TColor get (); }