9 answers
Appears that Shapes are not adjustable in Tableau Public (Creator/Online) either. I would think that they'd be adjustable as in Tableau Desktop. Only modifiable buttons available are Color, Size, Label, and Tooltip. In the below example, can create a view with shapes, but only with those that TP provides. I can put something up in the Dev's Channel, see if they'll respond.
Issue exists in Tableau Desktop (Creator/Online) as well...
No issues with Tableau Desktop (client)
Best, Don
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