Jade Harley is the fourth Homestuck kid to be introduced. She has long black hair, round glasses, and a bucktoothed grin. She wears a shirt with a constantly changing blue picture on it, a belt, and a button-up long skirt. She was named 'Farmstink Buttlass' while she was sleeping and thus she couldn't object to the name like the three other kids did -- however she wrote a note in advance about it.
Jade goes by the chumhandle gardenGnostic when chatting on Pesterchum.