I am about to sandwhich a tree of life quilt. The pieced top consists of one large center panel that has a white background w/ the tree and animals in bright colrs ( including black). The 7 layers of borders consist of black and other very bright colors. The backing is a black background w/ all the bright colors. I have a king batting in black my sis sent me w/ the kit. Is there a reason to use black batting over white?? Won't the black batt. show through the center panel white background??