There is no other simpler, more primitive geometric shape that condenses as much power as the sphere.
The sphere is the primary geometric shape of nature.
The atoms are round, the cells, the uterus, the eye and the sun...so the sphere is the shape that represents creation.
On the other hand, fuxia pink is the color that humans use to mark forests, here in Japan as well as in Europe. The color pink is used to mark trees that are dead, those that need to be cut, to mark paths or areas.
Definitely the color pink is the color of human domestication in nature.