Double Dilute Hollywood White colt - UC Davis reults

I need some interpretation on the results of the UC Davis test results - "Coat Color results for 09F LITE THAT SPARKLE(DT21498): Red-Factor Result: e/e - Only the red factor detected. Basic color is sorrel or chestnut in the absence of other modifying genes. Agouti Result: a/a - Only recessive allele detected. Black pigment distributed uniformly. Basic color is black in the absence of other modifying genes." On the Red-Factor Results - I understand that he is a cremello based on the fact that they only detected the red factor. On the Agouti Results - It says only the recessive allele detected - so does what does that mean? Please interpret. Thanks - Carolyn