Talk about optical illusions? Look at this fall attic windows wall hanging.. Is it not beautiful. The notes say it is accomplished with the sashing of each individual block.. I personally think part of it is also the brighter part is at the bottom of the pane and the darker on the side, with the darkest as the sashing (black). This is my HO. I am only a beginner in anything quilting..It is beautiful and I wanted you all to see it.
Here is the link http://www.favequilts.com/Fall-Quilts/C ... brics/ml/1
Enjoy !