Calico is actual a type of fabric. It's a sturdy, inexpensive cotton weave. We think Calico Prints because it was very often used to dye with small scattered patterns (also referred to as chintz) This was possibly popularly done to hide the small discolrations and plant particles in the weave. If you couldn't afford a finer fabric, you'd dye it or decorate it to hide the impurities. So, Yes, this would be a type of print used on calico fabric so it has become common to refer to this style as calico. Although technically, calico refers to the actual cloth, not the design.