Inquiry about Graphical Representation Discrepancy in OSTIS Platform

[HkThinker]

In various academic publications and platform examples, I've noticed that conceptual nodes are typically depicted with circular frames. However, while working within the OSTIS platform myself, the graphical output for similar nodes results in square frames instead.

Could you provide insight into why there is this difference in the visual representations? Is this a change that's been implemented in recent updates to the platform, or is there an option within the tool that I might have overlooked that controls the shape of these frames?

Your guidance on how to achieve consistency with the established standards shown in literature would be greatly appreciated.

Thank you for your time and assistance.