Color & Texture
by Joan Gordon
Years ago Mrs. Annie Swan, of the Invincia Yorkies, told us to keep one in our breeding program. She said everyone kept a so called "Red". They occasionally appeared from silky coated parents. No one ever showed them, but since they had the ability to return color pattern to it's proper boundaries and the ability to darken the color of a lighter dog when bred to them, they were on occasion bred in. Bred to cottony or wooly texture they usually have little effect. Bred to silk texture they improve color. Bred together they usually produce themselves and occasionally a lovely colored silk dog - but this is the exception.
this is a part of a article I have linked on my site about coat and texture...
http://dandugmore.netfirms.com/color.html
for those who are interested!!