It would be great if Power BI's bubble/scatter plot charts would offer different shapes to represent the Values. SAP's Business Objects already does this as shown in this example. Here, we can see information conveyed by the X-axis, Y-axis, bubble size, bubble color--and bubble shape. Currently, the Legend supplies the bubble color, but the Values isn't supported graphically (so far as I can tell).
Thanks for your consideration!Different shapes can represent different categories from the bubble's color