rect objects appear with "notches" in corners
I'm trying to make a canvas objects with a few square outline (i.e. unfilled) boxes. Creating the boxes is no problem, but I notice that the corners aren't "sharp". They have little 90-degree notches in each corner, as in this example:
It's not so apparent when the box outline thickness is small, but I want to use some thicker-outlined boxes in my next experiment. Is there a simple way around this? Apologies if the answer to this question is already available--I searched the forum and couldn't find anyone else having this problem.