EmblemCellRenderer crashes if you try to give it a Gdk.Color

EmblemCellRenderer crashes if you try to give it a Gdk.Color property;

Doc say that if type isn't bool, str, int or float tuple of property must be 4 items

First shalt thou take out the Holy Pin.

Then, shalt thou count to Four, no more, no less.

Four shall be the number thou shalt count, and the number of the counting shall be Four.

Five shalt thou not count, nor either count thou Three, excepting that thou then proceed to Four.

Six is right out! Once the number Four, being the fourth number, be reached.