Rotated rectangles do not align

[lschwetlick]

Context

I wanted to get two rotated rectangles of different sizes, centered at the same point.

Minimal Reproducible Example

stim = shapes.rectangle(visual_size=(15,15), ppd=10, rectangle_size=(4,4), rectangle_position=(3,3), rotation=30)

stim_i = shapes.rectangle(visual_size=(15,15), ppd=10, rectangle_size=(3,3), rectangle_position=(3,3), rotation=30)

new_img = stim["img"] - stim_i["img"]

plt.imshow(new_img)

Expected behavior

I would expect the rectangles to line up either at the corners or the center.

Observed behavior