facemenu-add-new-color

facemenu-add-new-color is a compiled Lisp function in `facemenu.el'.

(facemenu-add-new-color COLOR MENU)

Add COLOR (a color name string) to the appropriate Face menu.
MENU should be `facemenu-foreground-menu' or `facemenu-background-menu'.
Return the event type (a symbol) of the added menu entry.

This is called whenever you use a new color.