7/8 or more of the kernel is intact. 85% or more of lot, by weight, are half kernels with the remainder three-fourths half kernels. Walnuts may be color sorted to meet specific product needs. The wide range of color classifications available. Extra light: No more than 15% shall be darker than extra light of which only 2% (included in the 15%) may be darker than light. Light: No more than 15% shall be darker than light of which only 2% (included in the 15%) may be darker than light amber. Light amber: No more than 15% shall be darker than light amber of which only 2% (included in the 15%) may be darker than amber. Amber: No more than 10% shall be darker than amber.