I am working on an ArcGIS Dashboard and have a list element that is pulling its data from an Arcade Data Expression.
Ideally I would like to modify the "Line item Icon", which by default is just an orange polygon to be a circle that's color is dependent upon a column's values. I have already figured out how to generate the appropriate hex codes, I am just unsure how or if you can modify the default symbol, which I have attached below:

According to this document, the list item is unable to take advantage of the Icon properties or else I would just use that.
Has anyone dealt with this before?
Best,
Andrew