Circles and rectangles in legend not conistent to main plotting window

[claczny]

When visualizing sequences that are derived from a larger collection (say, 20) of labels, the symbols for "circle" and for "rectangle" are not consistent between the legend and the main plotting window.

It appears that in the main plotting window, they are indeed correctly displayed but in the legend, the circles appear as small rectangles.

Overall, this is not consistent and expected to not be intuitive.