From catalog: 

MODERN BACKGROUND is a brand ***NEW*** addition to my inventory.  Price is quoted for half meter cut. Please add number of cuts you'd need for your size.

It calls the background Eggshell & has various script rather scattered around.

It is such a basic print that would work to back any quilt.

108" wide 100% Cotton by Moda

Full Price: $32.50  YOUR PRICE per meter $28.00  Half meter cut $14.00

Weight: 1 g
Price: $14.00
SKU: WB Mod Back