trichrome

Like the Mumuye and Chamba examples they have a trichrome system of decoration in which red (ochre) and white (chalk) accents are set against an opaque and granular black (soot) background.

To summarize: it is possible to make reasonable predictions about the type of force to which connective tissues are subjected by examination of the morphological and biochemical features of[…]the histological staining reaction of the collagen fibers by the Masson trichrome stain[…]