I've had my 18 x 24 since 1989 when I 1st started quilting. My 24 x 36 & my 2 other smaller ones I bought in the 90's. Looking them over I've noticed that mine are a solid green all the way thru, but the new ones in our LQS's are white in the center. Why the change in the product?!! I'm worried now about buying a new one & losing the quality they had originally.