Making a Drop Down Style Custom Color Picker in WPF

Although WPF provides quite a rich collection of UI controls and components for development, a particular control has been missing. That is a color-picker control. I have just published how I came up with making a drop down style custom color picker in WPF.

Here it is:

http://www.codeproject.com/KB/WPF/WPFDropDownColorPicker.aspx