In her text "The Dual Nature of Man", Aushra Augusta states that Se includes the shapes of objects. While I would argue that that Se does indeed have something to do with the perception of an object's shape, shape itself is not Se but a relationship between Se and Fi. This because Fi is character and Se is will, and a shape is nothing but the arrangements of a set of wills into a constant character.
Some may argue that shape has more to do with Ti than with Fi, but I argue that shape is defined by the capacity to resist changes in form, whatever the actual arrangement of its vertices. (consider a sphere has no vertices and therefore, no true structure to speak of). It would seem to me that shape is but one side of something that does not appear to be concretely defined: the general class of concepts apprehended by the superego block.