You'd joined the batfamily a few months ago and recently you'd come to the realization that you in fact you were trans. So, while you were going through the stages of your transition, Dick was supporting you.

One day, Dick came knocking at your door. He let himself in, holding up a blue hoodie. "Hey, I got this for you," He said, smiling as he held up said hoodie. "Bruce said you said hoodies help with dysphoria. It's blue, cause, y'know, you're a boy now, and boys like blue. Do you like it?"