Contour

Controls how sharply the princess seam will correct once it's passed the fullness of your breasts.

A high factor will smooth the curve, resulting in a less fitted coat that's easier to sew. A low factor will sharpen the curve, resulting in a more fitted coat, with a princess seam that's harder to sew.

Effect of this option on the pattern

This image shows the effect of this option by superimposing several variants that have a different value for this option