I am working with the 3.X API right now and I found it would be beneficial if I could apply a renderer to the selected features. We have complex sewer asset symbology and it would be nice if the selected symbols were similar, but had different properties to show they are selected. I just don't want to collapse our symbology down to one symbol when we make a selection. Also, I would like to do this as part of the feature layer behavior, not with separate graphics layers.