The entire schema of color codes is based around color theory - namely that any shade, from the deepest black to purest white, can be formed by some combination of three colors: red, green, and blue.
Parting with previous views generally held by psychologists, Kohlberg emphasized that children actively self-construct their gender through a conceptual pattern in the mind called a schema.
The categories are restricted in their applicability to the schema, i.e.
At most it was thought to establish a schema of formal unity which might serve as a regulative ideal.
In the earlier accepted notion of direct segmentation, usually known as the schema of Remak, division was described as commencing in the nucleolus, as thereafter spreading to the nucleus, and as ultimately implicating the cell-substance.