Standard brindle Frenchies have a predominant black coat with lighter colored hairs mixed in. The lighter colored hairs can be virtually non existent (a seal brindle appears to be pure black, but close inspection will reveal some lighter hairs) to the lighter hairs being more prominent than the dark hairs (which results in a reverse brindle). A tiger brindle has relatively uniform bands of brindling on the body resembling tiger stripes. Gabbi is a heavy brindled girl that you can see at the 4:50 mark.