Hello, is it possible to change the symbols of a layer that is symbolized using unique values using the UniqueValueRenderer in arcpy CIM access by looping over each item and changing its symbol?
for grp in sym.renderer.groups: for itm in grp.items: ''' Change the symbol of each item to a specific symbol based on the value'''
This is pretty well all that is listed in the help topic
UniqueValueRenderer—ArcPy | Documentation