Added hex color codes, closing dialog.

Added hex color codes to form.
Added a dialog to ask about an unsaved color pallete when closing.
Various other small changes.
Added tooltips, adjustable color thumb sizes.

Added tooltips, when hovering over a color displays color information.
Added a way to adjust the size of each color thumbnail.
A couple of other small changes.
A simple tooltip

Added a simple tooltip, didn't like using the default.
Created a extensions class

Created an extensions class.
Added a Deflate method for the Rectangle.