what does "peace sign dead center‘mean？
“I got that. Go ahead and eat, and I’ll do what I have to do on this level. That way if you want to go back to work, I’ll be downstairs where I won’t bother you.”
She stood between him and his laptop, smiling genially in a faded purple sweatshirt with a peace sign dead center, even more faded jeans and bright orange Crocs.
As arguing seemed time-consuming and futile, he simply walked out of the room.

Question

what does "peace sign dead center‘mean？
“I got that. Go ahead and eat, and I’ll do what I have to do on this level. That way if you want to go back to work, I’ll be downstairs where I won’t bother you.” 
She stood between him and his laptop, smiling genially in a faded purple sweatshirt with a peace sign dead center, even more faded jeans and bright orange Crocs. 
As arguing seemed time-consuming and futile, he simply walked out of the room.

Answer

A 'peace sign' was on her shirt, exactly at the centre. 'dead centre' means 'exactly the middle'. There are a few word plays around a cemetery being the 'dead centre of town'.

Answer

An expression for in the center.